What does DDL stand for in SQL? MCQ with Answer and Explanation
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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?
Correct Answer: Option D
Explanation:
Information is data that has been processed, structured, or organized in a meaningful way to provide context and utility to the user.
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 condition-tester returns TRUE if a subquery returns one or more records, and FALSE if the subquery returns no rows?
Correct Answer: Option B
Explanation:
The EXISTS operator is used to test for the presence of any records in a subquery, returning TRUE as soon as a single matching row is encountered.
The EXISTS operator is used to test for the presence of any records in a subquery, returning TRUE as soon as a single matching row is encountered.
This question belongs to:
Computer
Database Management System (DBMS)
Question #3
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Which of the following is a benefit of DBMS?
Correct Answer: Option D
Explanation:
DBMS allows controlled data sharing while maintaining integrity and security.
DBMS allows controlled data sharing while maintaining integrity and security.
This question belongs to:
Computer
Database Management System (DBMS)
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