MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

SQL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the meaning of DCL?
A
Data Count Language
B
Database Control Language
C
Data Calculation Language
D
Data Control Language
Explanation: 

Detailed explanation-1: -Data Control Language (or DCL) consists of statements that control security and concurrent access to table data. COMMIT. Instructs the XDB Server to make permanent all data changes resulting from DML statements executed by a transaction.

Detailed explanation-2: -The DDL or Data Control Language is basically a syntax that is similar to the computer programming language that can be used to control access to the information stored in a database. DCL can be used to access this stored data, and it is used mainly to revoke and grant the users the required access to any database.

Detailed explanation-3: -Data control language (DCL) is used to access the stored data. It is mainly used for revoke and to grant the user the required access to a database.

Detailed explanation-4: -DCL (Data Control Language): DCL includes commands such as GRANT and REVOKE which mainly deal with the rights, permissions, and other controls of the database system. List of DCL commands: GRANT: This command gives users access privileges to the database.

Detailed explanation-5: -Data Control Language(DCL): The types of Data Controlling Language commands include Grant and Revoke. GRANT Command: User access privileges to a database are given by this command. It can be used to grant SELECT, INSERT, UPDATE, and DELETE privileges to a user on a single table or several tables.

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