What is a deadlock in a database? MCQ with Answer and Explanation
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Practice More Database Management System (DBMS) Questions
Question #1
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What is the purpose of the SQL 'IN' operator?
Correct Answer: Option D
Explanation:
IN is used to test membership in a set of values.
IN is used to test membership in a set of values.
This question belongs to:
Computer
Database Management System (DBMS)
Question #2
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Which of the following database concepts deals with grouping a set of SQL statements into a single logical unit of execution?
Correct Answer: Option C
Explanation:
A Transaction is a sequence of one or more SQL operations treated as a single, indivisible unit of work that must either succeed completely or fail completely.
A Transaction is a sequence of one or more SQL operations treated as a single, indivisible unit of work that must either succeed completely or fail completely.
This question belongs to:
Computer
Database Management System (DBMS)
Question #3
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Which wildcard character is used with the SQL LIKE operator to represent zero, one, or multiple characters?
Correct Answer: Option A
Explanation:
The percentage sign (%) is used as a wildcard character to match any sequence of zero or more characters in an SQL LIKE string comparison query.
The percentage sign (%) is used as a wildcard character to match any sequence of zero or more characters in an SQL LIKE string comparison query.
This question belongs to:
Computer
Database Management System (DBMS)
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