If a subquery used with the EXISTS operator returns a NULL value, what does the EXISTS condition return?TrueFalseNULLIt results in an error.
Question
Solution 1
The EXISTS condition in SQL is used to test for the existence of any record in a subquery. If the subquery returns any rows at all, EXISTS subquery will return TRUE.
So, even if a subquery returns NULL values, the EXISTS condition will still return TRUE because NULL is a valid result that signifie Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.
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Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.
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