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SQL Environment and Data Manipulation Quiz

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SQL Environment and Data Manipulation Quiz

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Questions and Answers

What is the purpose of Data Definition Language (DDL) in SQL?

Defining a database, including creating, altering, and dropping tables and establishing constraints (correct)

Controlling a database, including administering privileges and committing data

Describing the structure of a database

Maintaining and querying a database

What does the SQL schema contain?

Commands that maintain and query a database

Descriptions of objects created by a user (base tables, views, constraints) (correct)

Commands that define a database, including creating, altering, and dropping tables

Commands that control a database, including administering privileges

What is the role of Data Control Language (DCL) in SQL?

Maintaining and querying a database

Controlling a database, including administering privileges and committing data (correct)

Describing the structure of a database

Defining a database, including creating, altering, and dropping tables and establishing constraints

What does the Data Definition Language (DDL) encompass?

Commands that define a database, including creating, altering, and dropping tables Signup and view all the answers

What is a Schema in the context of a database?

The structure that contains descriptions of objects created by a user Signup and view all the answers

What does the Data Control Language (DCL) involve?

Commands that control a database, including administering privileges and committing data Signup and view all the answers

What does the Data Manipulation Language (DML) in SQL primarily involve?

Maintaining and querying a database Signup and view all the answers

Which of the following best describes the role of Data Definition Language (DDL) in SQL?

Defining a database, including creating, altering, and dropping tables Signup and view all the answers

In the context of a database, what does a Schema primarily contain?

Descriptions of objects created by a user, such as base tables and views Signup and view all the answers

What does the Data Definition Language (DDL) in SQL encompass?

Commands that define a database, including creating, altering, and dropping tables and establishing constraints Signup and view all the answers

What is the primary function of Data Control Language (DCL) in SQL?

Commands that control a database, including administering privileges and committing data Signup and view all the answers

What does a Schema contain in SQL?

The structure that contains descriptions of objects created by a user (base tables, views, constraints) Signup and view all the answers