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The ______ construct returns true if a given tuple is present in the subquery.

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The ______ construct returns true if a given tuple is present in the subquery.

(a) not exists

(b) present

(c) not present

(d) exists

I have been asked this question in a job interview.

The doubt is from Nested Subqueries in division Introduction to Relational Model and Sql of RDBMS

1 Answer

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Best answer
The correct answer is (d) exists

Explanation: The exists construct returns true if a given tuple is present in the subquery. The not exists construct gives true if a given tuple is not present in the subquery.

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