EXISTS and NOT EXISTS are actually just another form of correlated subqueries.

Name: EXISTS and NOT EXISTS are actually just another form of correlated subqueries.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

EXISTS and NOT EXISTS are subqueries that are correlated with the outer query, meaning they reference columns from the outer query in order to determine if a row should be included in the result set. Therefore, they are considered to be a type of correlated subquery.

EXISTS and NOT EXISTS Are Actually Just Another Form of Correlated