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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 (A) 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 (C) 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 (B) Signup and view all the answers

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

Maintaining and querying a database (D) 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 (B) 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 (C) 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 (C) 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 (C) 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) (B) Signup and view all the answers

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