SQL Interview Questions #167: What is a correlated subquery?

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What is a correlated subquery?

A correlated subquery is a type of subquery that is always nested within another subquery.

A correlated subquery is a subquery that references a column from the outer query.

A correlated subquery is a type of subquery that is executed before the outer query.

A correlated subquery is a synonym for a join.

A correlated subquery is a synonym for a nested subquery.

A correlated subquery is a subquery that is executed independently of the outer query.

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