Datasets:

NESPED-GEN

/

selector_with_schema_reduzido

like 0

Follow

NESPED - Generative AI Reaserch 4

twitter_1

Find the maximum and total number of followers of all users.

medium

Table follows ( follows.f1 (int(11)), follows.f2 (int(11)), ) Table tweets ( tweets.id (bigint(20)), tweets.uid (int(11)), tweets.text (char(140)), tweets.createdate (datetime), ) Table user_profiles ( user_profiles.uid (int(11)), user_profiles.name (varchar(255)), user_profiles.email (varchar(255)), user_profiles.partitionid (int(11)), user_profiles.followers (int(11)), ) Possible JOINs: follows.f1 = user_profiles.uid follows.f2 = user_profiles.uid tweets.uid = user_profiles.uid

SELECT max(followers) , sum(followers) FROM user_profiles

Table follows ( follows.f1 (int(11)), follows.f2 (int(11)), ) Table tweets ( tweets.id (bigint(20)), tweets.uid (int(11)), tweets.text (char(140)), tweets.createdate (datetime), ) Table user_profiles ( user_profiles.uid (int(11)), user_profiles.name (varchar(255)), user_profiles.email (varchar(255)), user_profiles.partitionid (int(11)), user_profiles.followers (int(11)), ) Possible JOINs: follows.f1 = user_profiles.uid follows.f2 = user_profiles.uid tweets.uid = user_profiles.uid

{ 'follows': ['f1', 'f2'], 'tweets': ['id', 'uid', 'text', 'createdate'], 'user_profiles': ['uid', 'name', 'email', 'partitionid', 'followers'] }

{ 'user_profiles': ['uid', 'followers'] }

TABLE user_profiles ( user_profiles.uid (int(11)), user_profiles.followers (int(11)), ) Possible JOINs:

TABLE user_profiles ( user_profiles.uid (int(11)), user_profiles.name (varchar(255)), user_profiles.email (varchar(255)), user_profiles.partitionid (int(11)), user_profiles.followers (int(11)), ) Possible JOINs:

product_catalog

Find the names of all the catalog entries.

easy

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT distinct(catalog_entry_name) FROM catalog_contents

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

What are all the catalog entry names?

easy

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT distinct(catalog_entry_name) FROM catalog_contents

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Find the list of attribute data types possessed by more than 3 attribute definitions.

easy

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT attribute_data_type FROM Attribute_Definitions GROUP BY attribute_data_type HAVING count(*) > 3

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'attribute_definitions': ['attribute_id', 'attribute_data_type'] }

TABLE Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Possible JOINs:

TABLE Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Possible JOINs:

product_catalog

What are the attribute data types with more than 3 attribute definitions?

easy

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT attribute_data_type FROM Attribute_Definitions GROUP BY attribute_data_type HAVING count(*) > 3

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'attribute_definitions': ['attribute_id', 'attribute_data_type'] }

TABLE Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Possible JOINs:

TABLE Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Possible JOINs:

product_catalog

What is the attribute data type of the attribute with name "Green"?

easy

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT attribute_data_type FROM Attribute_Definitions WHERE attribute_name = "Green"

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'] }

TABLE Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Possible JOINs:

TABLE Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Possible JOINs:

product_catalog

Find the attribute data type for the attribute named "Green".

easy

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT attribute_data_type FROM Attribute_Definitions WHERE attribute_name = "Green"

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'] }

TABLE Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Possible JOINs:

TABLE Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Possible JOINs:

product_catalog

Find the name and level of catalog structure with level between 5 and 10.

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_level_name , catalog_level_number FROM Catalog_Structure WHERE catalog_level_number BETWEEN 5 AND 10

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_structure': ['catalog_level_number', 'catalog_level_name'] }

TABLE Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), )

TABLE Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Possible JOINs: Catalog_Structure.catalog_id = Catalogs.catalog_id

product_catalog

What are the name and level of catalog structure with level number between 5 and 10

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_level_name , catalog_level_number FROM Catalog_Structure WHERE catalog_level_number BETWEEN 5 AND 10

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_structure': ['catalog_level_number', 'catalog_level_name'] }

TABLE Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), )

TABLE Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Possible JOINs: Catalog_Structure.catalog_id = Catalogs.catalog_id

product_catalog

Find all the catalog publishers whose name contains "Murray"

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT distinct(catalog_publisher) FROM catalogs WHERE catalog_publisher LIKE "%Murray%"

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalogs': ['catalog_id', 'catalog_publisher'] }

TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_publisher (VARCHAR(80)), ) Possible JOINs:

TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs:

product_catalog

Which catalog publishers have substring "Murray" in their names?

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT distinct(catalog_publisher) FROM catalogs WHERE catalog_publisher LIKE "%Murray%"

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalogs': ['catalog_id', 'catalog_publisher'] }

TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_publisher (VARCHAR(80)), ) Possible JOINs:

TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs:

product_catalog

Which catalog publisher has published the most catalogs?

hard

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_publisher FROM catalogs GROUP BY catalog_publisher ORDER BY count(*) DESC LIMIT 1

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalogs': ['catalog_id', 'catalog_publisher'] }

TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_publisher (VARCHAR(80)), ) Possible JOINs:

TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs:

product_catalog

Find the catalog publisher that has the most catalogs.

hard

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_publisher FROM catalogs GROUP BY catalog_publisher ORDER BY count(*) DESC LIMIT 1

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalogs': ['catalog_id', 'catalog_publisher'] }

TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_publisher (VARCHAR(80)), ) Possible JOINs:

TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs:

product_catalog

Find the names and publication dates of all catalogs that have catalog level number greater than 5.

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalogs.catalog_name , catalogs.date_of_publication FROM catalogs JOIN catalog_structure ON catalogs.catalog_id = catalog_structure.catalog_id WHERE catalog_level_number > 5

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalogs': ['catalog_id', 'catalog_name', 'date_of_publication'], 'catalog_structure': ['catalog_level_number', 'catalog_id'] }

TABLE Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), ) TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.date_of_publication (DATETIME), ) Possible JOINs: Catalog_Structure.catalog_id = Catalogs.catalog_id

TABLE Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Structure.catalog_id = Catalogs.catalog_id

product_catalog

What are the name and publication date of the catalogs with catalog level number above 5?

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalogs.catalog_name , catalogs.date_of_publication FROM catalogs JOIN catalog_structure ON catalogs.catalog_id = catalog_structure.catalog_id WHERE catalog_level_number > 5

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalogs': ['catalog_id', 'catalog_name', 'date_of_publication'], 'catalog_structure': ['catalog_level_number', 'catalog_id'] }

TABLE Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), ) TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.date_of_publication (DATETIME), ) Possible JOINs: Catalog_Structure.catalog_id = Catalogs.catalog_id

TABLE Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Structure.catalog_id = Catalogs.catalog_id

product_catalog

What are the entry names of catalog with the attribute possessed by most entries.

extra

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT Catalog_Contents.catalog_entry_name FROM Catalog_Contents JOIN Catalog_Contents_Additional_Attributes ON Catalog_Contents.catalog_entry_id = Catalog_Contents_Additional_Attributes.catalog_entry_id WHERE Catalog_Contents_Additional_Attributes.attribute_value = (SELECT attribute_value FROM Catalog_Contents_Additional_Attributes GROUP BY attribute_value ORDER BY count(*) DESC LIMIT 1)

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'attribute_value'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), ) TABLE Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Possible JOINs: Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) TABLE Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Find the entry names of the catalog with the attribute that have the most entries.

extra

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT Catalog_Contents.catalog_entry_name FROM Catalog_Contents JOIN Catalog_Contents_Additional_Attributes ON Catalog_Contents.catalog_entry_id = Catalog_Contents_Additional_Attributes.catalog_entry_id WHERE Catalog_Contents_Additional_Attributes.attribute_value = (SELECT attribute_value FROM Catalog_Contents_Additional_Attributes GROUP BY attribute_value ORDER BY count(*) DESC LIMIT 1)

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'attribute_value'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), ) TABLE Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Possible JOINs: Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) TABLE Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

What is the entry name of the most expensive catalog (in USD)?

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_entry_name FROM catalog_contents ORDER BY price_in_dollars DESC LIMIT 1

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name', 'price_in_dollars'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.price_in_dollars (DOUBLE), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Find the entry name of the catalog with the highest price (in USD).

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_entry_name FROM catalog_contents ORDER BY price_in_dollars DESC LIMIT 1

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name', 'price_in_dollars'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.price_in_dollars (DOUBLE), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

What is the level name of the cheapest catalog (in USD)?

hard

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_structure.catalog_level_name FROM catalog_contents JOIN catalog_structure ON catalog_contents.catalog_level_number = catalog_structure.catalog_level_number ORDER BY catalog_contents.price_in_dollars LIMIT 1

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'price_in_dollars'], 'catalog_structure': ['catalog_level_number', 'catalog_level_name'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.price_in_dollars (DOUBLE), ) TABLE Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) TABLE Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

product_catalog

Find the level name of the catalog with the lowest price (in USD).

hard

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_structure.catalog_level_name FROM catalog_contents JOIN catalog_structure ON catalog_contents.catalog_level_number = catalog_structure.catalog_level_number ORDER BY catalog_contents.price_in_dollars LIMIT 1

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'price_in_dollars'], 'catalog_structure': ['catalog_level_number', 'catalog_level_name'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.price_in_dollars (DOUBLE), ) TABLE Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) TABLE Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

product_catalog

What are the average and minimum price (in Euro) of all products?

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT avg(price_in_euros) , min(price_in_euros) FROM catalog_contents

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'price_in_euros'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.price_in_euros (DOUBLE), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Give me the average and minimum price (in Euro) of the products.

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT avg(price_in_euros) , min(price_in_euros) FROM catalog_contents

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'price_in_euros'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.price_in_euros (DOUBLE), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

What is the product with the highest height? Give me the catalog entry name.

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_entry_name FROM catalog_contents ORDER BY height DESC LIMIT 1

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name', 'height'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.height (VARCHAR(20)), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Which catalog content has the highest height? Give me the catalog entry name.

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_entry_name FROM catalog_contents ORDER BY height DESC LIMIT 1

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name', 'height'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.height (VARCHAR(20)), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Find the name of the product that has the smallest capacity.

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_entry_name FROM catalog_contents ORDER BY capacity ASC LIMIT 1

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name', 'capacity'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.capacity (VARCHAR(20)), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Which catalog content has the smallest capacity? Return the catalog entry name.

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_entry_name FROM catalog_contents ORDER BY capacity ASC LIMIT 1

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name', 'capacity'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.capacity (VARCHAR(20)), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Find the names of all the products whose stock number starts with "2".

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_entry_name FROM catalog_contents WHERE product_stock_number LIKE "2%"

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name', 'product_stock_number'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Which catalog contents have a product stock number that starts from "2"? Show the catalog entry names.

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_entry_name FROM catalog_contents WHERE product_stock_number LIKE "2%"

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name', 'product_stock_number'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Find the names of catalog entries with level number 8.

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT Catalog_Contents.catalog_entry_name FROM Catalog_Contents JOIN Catalog_Contents_Additional_Attributes ON Catalog_Contents.catalog_entry_id = Catalog_Contents_Additional_Attributes.catalog_entry_id WHERE Catalog_Contents_Additional_Attributes.catalog_level_number = "8"

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), ) TABLE Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), ) Possible JOINs: Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) TABLE Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

What are the names of catalog entries with level number 8?

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT Catalog_Contents.catalog_entry_name FROM Catalog_Contents JOIN Catalog_Contents_Additional_Attributes ON Catalog_Contents.catalog_entry_id = Catalog_Contents_Additional_Attributes.catalog_entry_id WHERE Catalog_Contents_Additional_Attributes.catalog_level_number = "8"

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), ) TABLE Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), ) Possible JOINs: Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) TABLE Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Find the names of the products with length smaller than 3 or height greater than 5.

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_entry_name FROM catalog_contents WHERE LENGTH < 3 OR width > 5

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name', 'length', 'width'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Which catalog contents have length below 3 or above 5? Find the catalog entry names.

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_entry_name FROM catalog_contents WHERE LENGTH < 3 OR width > 5

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name', 'length', 'width'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Find the name and attribute ID of the attribute definitions with attribute value 0.

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT Attribute_Definitions.attribute_name , Attribute_Definitions.attribute_id FROM Attribute_Definitions JOIN Catalog_Contents_Additional_Attributes ON Attribute_Definitions.attribute_id = Catalog_Contents_Additional_Attributes.attribute_id WHERE Catalog_Contents_Additional_Attributes.attribute_value = 0

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'attribute_definitions': ['attribute_id', 'attribute_name'], 'catalog_contents_additional_attributes': ['attribute_id', 'attribute_value'] }

TABLE Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), ) TABLE Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), )

TABLE Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) TABLE Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Possible JOINs: Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Which attribute definitions have attribute value 0? Give me the attribute name and attribute ID.

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT Attribute_Definitions.attribute_name , Attribute_Definitions.attribute_id FROM Attribute_Definitions JOIN Catalog_Contents_Additional_Attributes ON Attribute_Definitions.attribute_id = Catalog_Contents_Additional_Attributes.attribute_id WHERE Catalog_Contents_Additional_Attributes.attribute_value = 0

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'attribute_definitions': ['attribute_id', 'attribute_name'], 'catalog_contents_additional_attributes': ['attribute_id', 'attribute_value'] }

TABLE Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), ) TABLE Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), )

TABLE Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) TABLE Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Possible JOINs: Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Find the name and capacity of products with price greater than 700 (in USD).

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_entry_name , capacity FROM Catalog_Contents WHERE price_in_dollars > 700

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name', 'price_in_dollars', 'capacity'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Which catalog contents has price above 700 dollars? Show their catalog entry names and capacities.

medium

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_entry_name , capacity FROM Catalog_Contents WHERE price_in_dollars > 700

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'catalog_entry_name', 'price_in_dollars', 'capacity'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Find the dates on which more than one revisions were made.

easy

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT date_of_latest_revision FROM Catalogs GROUP BY date_of_latest_revision HAVING count(*) > 1

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalogs': ['catalog_id', 'date_of_latest_revision'] }

TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs:

TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs:

product_catalog

On which days more than one revisions were made on catalogs.

easy

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT date_of_latest_revision FROM Catalogs GROUP BY date_of_latest_revision HAVING count(*) > 1

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalogs': ['catalog_id', 'date_of_latest_revision'] }

TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs:

TABLE Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs:

product_catalog

How many products are there in the records?

easy

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT count(*) FROM catalog_contents

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Find the total number of catalog contents.

easy

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT count(*) FROM catalog_contents

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

Name all the products with next entry ID greater than 8.

easy

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_entry_name FROM catalog_contents WHERE next_entry_id > 8

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'next_entry_id', 'catalog_entry_name'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

product_catalog

What are the catalog entry names of the products with next entry ID above 8?

easy

Table Attribute_Definitions ( Attribute_Definitions.attribute_id (INTEGER), Attribute_Definitions.attribute_name (VARCHAR(30)), Attribute_Definitions.attribute_data_type (VARCHAR(10)), ) Table Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Table Catalog_Contents_Additional_Attributes ( Catalog_Contents_Additional_Attributes.catalog_entry_id (INTEGER), Catalog_Contents_Additional_Attributes.catalog_level_number (INTEGER), Catalog_Contents_Additional_Attributes.attribute_id (INTEGER), Catalog_Contents_Additional_Attributes.attribute_value (VARCHAR(255)), ) Table Catalog_Structure ( Catalog_Structure.catalog_level_number (INTEGER), Catalog_Structure.catalog_id (INTEGER), Catalog_Structure.catalog_level_name (VARCHAR(50)), ) Table Catalogs ( Catalogs.catalog_id (INTEGER), Catalogs.catalog_name (VARCHAR(50)), Catalogs.catalog_publisher (VARCHAR(80)), Catalogs.date_of_publication (DATETIME), Catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Contents_Additional_Attributes.catalog_entry_id = Catalog_Contents.catalog_entry_id Catalog_Contents_Additional_Attributes.catalog_level_number = Catalog_Structure.catalog_level_number Catalog_Structure.catalog_id = Catalogs.catalog_id

SELECT catalog_entry_name FROM catalog_contents WHERE next_entry_id > 8

Table attribute_definitions ( attribute_definitions.attribute_id (INTEGER), attribute_definitions.attribute_name (VARCHAR(30)), attribute_definitions.attribute_data_type (VARCHAR(10)), ) Table catalog_contents ( catalog_contents.catalog_entry_id (INTEGER), catalog_contents.catalog_level_number (INTEGER), catalog_contents.parent_entry_id (INTEGER), catalog_contents.previous_entry_id (INTEGER), catalog_contents.next_entry_id (INTEGER), catalog_contents.catalog_entry_name (VARCHAR(80)), catalog_contents.product_stock_number (VARCHAR(50)), catalog_contents.price_in_dollars (DOUBLE), catalog_contents.price_in_euros (DOUBLE), catalog_contents.price_in_pounds (DOUBLE), catalog_contents.capacity (VARCHAR(20)), catalog_contents.length (VARCHAR(20)), catalog_contents.height (VARCHAR(20)), catalog_contents.width (VARCHAR(20)), ) Table catalog_contents_additional_attributes ( catalog_contents_additional_attributes.catalog_entry_id (INTEGER), catalog_contents_additional_attributes.catalog_level_number (INTEGER), catalog_contents_additional_attributes.attribute_id (INTEGER), catalog_contents_additional_attributes.attribute_value (VARCHAR(255)), ) Table catalog_structure ( catalog_structure.catalog_level_number (INTEGER), catalog_structure.catalog_id (INTEGER), catalog_structure.catalog_level_name (VARCHAR(50)), ) Table catalogs ( catalogs.catalog_id (INTEGER), catalogs.catalog_name (VARCHAR(50)), catalogs.catalog_publisher (VARCHAR(80)), catalogs.date_of_publication (DATETIME), catalogs.date_of_latest_revision (DATETIME), ) Possible JOINs: catalog_contents.catalog_level_number = catalog_structure.catalog_level_number catalog_contents_additional_attributes.catalog_entry_id = catalog_contents.catalog_entry_id catalog_contents_additional_attributes.catalog_level_number = catalog_structure.catalog_level_number catalog_structure.catalog_id = catalogs.catalog_id

{ 'attribute_definitions': ['attribute_id', 'attribute_name', 'attribute_data_type'], 'catalogs': ['catalog_id', 'catalog_name', 'catalog_publisher', 'date_of_publication', 'date_of_latest_revision'], 'catalog_structure': ['catalog_level_number', 'catalog_id', 'catalog_level_name'], 'catalog_contents': ['catalog_entry_id', 'catalog_level_number', 'parent_entry_id', 'previous_entry_id', 'next_entry_id', 'catalog_entry_name', 'product_stock_number', 'price_in_dollars', 'price_in_euros', 'price_in_pounds', 'capacity', 'length', 'height', 'width'], 'catalog_contents_additional_attributes': ['catalog_entry_id', 'catalog_level_number', 'attribute_id', 'attribute_value'] }

{ 'catalog_contents': ['catalog_entry_id', 'next_entry_id', 'catalog_entry_name'] }

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), )

TABLE Catalog_Contents ( Catalog_Contents.catalog_entry_id (INTEGER), Catalog_Contents.catalog_level_number (INTEGER), Catalog_Contents.parent_entry_id (INTEGER), Catalog_Contents.previous_entry_id (INTEGER), Catalog_Contents.next_entry_id (INTEGER), Catalog_Contents.catalog_entry_name (VARCHAR(80)), Catalog_Contents.product_stock_number (VARCHAR(50)), Catalog_Contents.price_in_dollars (DOUBLE), Catalog_Contents.price_in_euros (DOUBLE), Catalog_Contents.price_in_pounds (DOUBLE), Catalog_Contents.capacity (VARCHAR(20)), Catalog_Contents.length (VARCHAR(20)), Catalog_Contents.height (VARCHAR(20)), Catalog_Contents.width (VARCHAR(20)), ) Possible JOINs: Catalog_Contents.catalog_level_number = Catalog_Structure.catalog_level_number

flight_1

How many aircrafts do we have?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT count(*) FROM Aircraft

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid'] }

TABLE aircraft ( aircraft.aid (number(9,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

How many aircrafts exist in the database?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT count(*) FROM Aircraft

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid'] }

TABLE aircraft ( aircraft.aid (number(9,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

Show name and distance for all aircrafts.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name , distance FROM Aircraft

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'name', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

What are the names and distances for all airplanes?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name , distance FROM Aircraft

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'name', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

Show ids for all aircrafts with more than 1000 distance.

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT aid FROM Aircraft WHERE distance > 1000

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

What are the ids of all aircrafts that can cover a distance of more than 1000?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT aid FROM Aircraft WHERE distance > 1000

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

How many aircrafts have distance between 1000 and 5000?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT count(*) FROM Aircraft WHERE distance BETWEEN 1000 AND 5000

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

What is the count of aircrafts that have a distance between 1000 and 5000?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT count(*) FROM Aircraft WHERE distance BETWEEN 1000 AND 5000

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

What is the name and distance for aircraft with id 12?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name , distance FROM Aircraft WHERE aid = 12

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'name', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

What is the name and distance for the aircraft that has an id of 12?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name , distance FROM Aircraft WHERE aid = 12

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'name', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

What is the minimum, average, and maximum distance of all aircrafts.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT min(distance) , avg(distance) , max(distance) FROM Aircraft

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

Return the minimum, average and maximum distances traveled across all aircrafts.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT min(distance) , avg(distance) , max(distance) FROM Aircraft

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

Show the id and name of the aircraft with the maximum distance.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT aid , name FROM Aircraft ORDER BY distance DESC LIMIT 1

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'name', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

What is the id and name of the aircraft that can cover the maximum distance?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT aid , name FROM Aircraft ORDER BY distance DESC LIMIT 1

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'name', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

Show the name of aircrafts with top three lowest distances.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name FROM Aircraft ORDER BY distance LIMIT 3

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'name', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

What are the aircrafts with top 3 shortest lengthes? List their names.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name FROM Aircraft ORDER BY distance LIMIT 3

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'name', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

Show names for all aircrafts with distances more than the average.

hard

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name FROM Aircraft WHERE distance > (SELECT avg(distance) FROM Aircraft)

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'name', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

What are the names of all aircrafts that can cover more distances than average?

hard

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name FROM Aircraft WHERE distance > (SELECT avg(distance) FROM Aircraft)

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'aircraft': ['aid', 'name', 'distance'] }

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

TABLE aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Possible JOINs:

flight_1

How many employees do we have?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT count(*) FROM Employee

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid'] }

TABLE employee ( employee.eid (number(9,0)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

What is the number of employees?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT count(*) FROM Employee

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid'] }

TABLE employee ( employee.eid (number(9,0)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

Show name and salary for all employees sorted by salary.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name , salary FROM Employee ORDER BY salary

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'name', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

What is the name and salary of all employees in order of salary?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name , salary FROM Employee ORDER BY salary

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'name', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

Show ids for all employees with at least 100000 salary.

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT eid FROM Employee WHERE salary > 100000

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

What is the id of every employee who has at least a salary of 100000?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT eid FROM Employee WHERE salary > 100000

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

How many employees have salary between 100000 and 200000?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT count(*) FROM Employee WHERE salary BETWEEN 100000 AND 200000

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

What is the number of employees that have a salary between 100000 and 200000?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT count(*) FROM Employee WHERE salary BETWEEN 100000 AND 200000

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

What is the name and salary for employee with id 242518965?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name , salary FROM Employee WHERE eid = 242518965

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'name', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

What is the name and salary of the employee with the id 242518965?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name , salary FROM Employee WHERE eid = 242518965

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'name', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

What is average and maximum salary of all employees.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT avg(salary) , max(salary) FROM Employee

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

What is the average and largest salary of all employees?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT avg(salary) , max(salary) FROM Employee

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

Show the id and name of the employee with maximum salary.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT eid , name FROM Employee ORDER BY salary DESC LIMIT 1

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'name', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

What is the id and name of the employee with the highest salary?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT eid , name FROM Employee ORDER BY salary DESC LIMIT 1

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'name', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

Show the name of employees with three lowest salaries.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name FROM Employee ORDER BY salary ASC LIMIT 3

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'name', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

What is the name of the 3 employees who get paid the least?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name FROM Employee ORDER BY salary ASC LIMIT 3

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'name', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

Show names for all employees with salary more than the average.

hard

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name FROM Employee WHERE salary > (SELECT avg(salary) FROM Employee)

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'name', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

What are the names of all employees who have a salary higher than average?

hard

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT name FROM Employee WHERE salary > (SELECT avg(salary) FROM Employee)

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'name', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

Show the id and salary of Mark Young.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT eid , salary FROM Employee WHERE name = 'Mark Young'

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'name', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

What is the id and salary of the employee named Mark Young?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT eid , salary FROM Employee WHERE name = 'Mark Young'

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'employee': ['eid', 'name', 'salary'] }

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

TABLE employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Possible JOINs:

flight_1

How many flights do we have?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT count(*) FROM Flight

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno'] }

TABLE flight ( flight.flno (number(4,0)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

What is the number of flights?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT count(*) FROM Flight

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno'] }

TABLE flight ( flight.flno (number(4,0)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

Show flight number, origin, destination of all flights in the alphabetical order of the departure cities.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT flno , origin , destination FROM Flight ORDER BY origin

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'origin', 'destination'] }

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

What is the flight number, origin, and destination for all flights in alphabetical order by departure cities?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT flno , origin , destination FROM Flight ORDER BY origin

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'origin', 'destination'] }

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

Show all flight number from Los Angeles.

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT flno FROM Flight WHERE origin = "Los Angeles"

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'origin'] }

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

What are the numbers of all flights coming from Los Angeles?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT flno FROM Flight WHERE origin = "Los Angeles"

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'origin'] }

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

Show origins of all flights with destination Honolulu.

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT origin FROM Flight WHERE destination = "Honolulu"

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'origin', 'destination'] }

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

What are the origins of all flights that are headed to Honolulu?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT origin FROM Flight WHERE destination = "Honolulu"

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'origin', 'destination'] }

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

Show me the departure date and arrival date for all flights from Los Angeles to Honolulu.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT departure_date , arrival_date FROM Flight WHERE origin = "Los Angeles" AND destination = "Honolulu"

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'origin', 'destination', 'departure_date', 'arrival_date'] }

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.departure_date (date), flight.arrival_date (date), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

What are the departure and arrival dates of all flights from LA to Honolulu?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT departure_date , arrival_date FROM Flight WHERE origin = "Los Angeles" AND destination = "Honolulu"

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'origin', 'destination', 'departure_date', 'arrival_date'] }

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.departure_date (date), flight.arrival_date (date), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

Show flight number for all flights with more than 2000 distance.

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT flno FROM Flight WHERE distance > 2000

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'distance'] }

TABLE flight ( flight.flno (number(4,0)), flight.distance (number(6,0)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

What are the numbers of all flights that can cover a distance of more than 2000?

easy

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT flno FROM Flight WHERE distance > 2000

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'distance'] }

TABLE flight ( flight.flno (number(4,0)), flight.distance (number(6,0)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

What is the average price for flights from Los Angeles to Honolulu.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT avg(price) FROM Flight WHERE origin = "Los Angeles" AND destination = "Honolulu"

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'origin', 'destination', 'price'] }

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.price (number(7,2)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

What is the average price for flights from LA to Honolulu?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT avg(price) FROM Flight WHERE origin = "Los Angeles" AND destination = "Honolulu"

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'origin', 'destination', 'price'] }

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.price (number(7,2)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

Show origin and destination for flights with price higher than 300.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT origin , destination FROM Flight WHERE price > 300

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'origin', 'destination', 'price'] }

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.price (number(7,2)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

What is the origin and destination for all flights whose price is higher than 300?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT origin , destination FROM Flight WHERE price > 300

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'origin', 'destination', 'price'] }

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.price (number(7,2)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

Show the flight number and distance of the flight with maximum price.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT flno , distance FROM Flight ORDER BY price DESC LIMIT 1

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'distance', 'price'] }

TABLE flight ( flight.flno (number(4,0)), flight.distance (number(6,0)), flight.price (number(7,2)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

What is the flight number and its distance for the one with the maximum price?

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT flno , distance FROM Flight ORDER BY price DESC LIMIT 1

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'distance', 'price'] }

TABLE flight ( flight.flno (number(4,0)), flight.distance (number(6,0)), flight.price (number(7,2)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid

flight_1

Show the flight number of flights with three lowest distances.

medium

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

SELECT flno FROM Flight ORDER BY distance ASC LIMIT 3

Table aircraft ( aircraft.aid (number(9,0)), aircraft.name (varchar2(30)), aircraft.distance (number(6,0)), ) Table certificate ( certificate.eid (number(9,0)), certificate.aid (number(9,0)), ) Table employee ( employee.eid (number(9,0)), employee.name (varchar2(30)), employee.salary (number(10,2)), ) Table flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: certificate.eid = employee.eid certificate.aid = aircraft.aid flight.aid = aircraft.aid

{ 'flight': ['flno', 'origin', 'destination', 'distance', 'departure_date', 'arrival_date', 'price', 'aid'], 'aircraft': ['aid', 'name', 'distance'], 'employee': ['eid', 'name', 'salary'], 'certificate': ['eid', 'aid'] }

{ 'flight': ['flno', 'distance'] }

TABLE flight ( flight.flno (number(4,0)), flight.distance (number(6,0)), )

TABLE flight ( flight.flno (number(4,0)), flight.origin (varchar2(20)), flight.destination (varchar2(20)), flight.distance (number(6,0)), flight.departure_date (date), flight.arrival_date (date), flight.price (number(7,2)), flight.aid (number(9,0)), ) Possible JOINs: flight.aid = aircraft.aid