Which SQL keyword is used to give users permission to access database objects? MCQ with Answer and Explanation

Question

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Which SQL keyword is used to give users permission to access database objects?

A. REVOKE

B. GRANT

C. PERMIT

D. ASSIGN

Answer: Option B

Solution (By JKSSB Mock Tests)

GRANT is a DCL command used to assign privileges to users.

This question belongs to: Computer Database Management System (DBMS)

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Question #1

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Data that has been processed, organized, structured, or presented in a given context to make it useful is known as what?

A. Information

B. Database

C. Raw facts

D. Field

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Correct Answer: Option A

Explanation:
Information is data that has been processed, structured, or organized in a meaningful way to provide context and utility to the user.

This question belongs to: Computer Database Management System (DBMS)

Question #2

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Which of the following is a valid SQL statement to add a new column to a table?

A. ALTER TABLE table_name ADD column_name datatype;

B. ADD COLUMN TO table_name column_name datatype;

C. ALTER TABLE table_name ADD COLUMN column_name datatype;

D. Both A and C

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Correct Answer: Option D

Explanation:
Both 'ADD column_name datatype' and 'ADD COLUMN column_name datatype' are valid syntax in some DBMS, but standard SQL uses 'ADD column_name datatype'. However, many DBMS support both.

This question belongs to: Computer Database Management System (DBMS)