What is correlated subquery give an example?

Name: SQL Correlated Subqueries Part 3
Uploaded: 2021-11-15 03:52:54
Description: SQL Correlated Subqueries: A Beginner's Guide is your ultimate resource for understanding the relationship between SQL and database administration. Get up to speed with this helpful guide that will help you find what you need in no time.

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Accepted Answer

A correlated subquery refers to a column of a table that is not in the FROM clause of the query. The column can appear in both the Projection and the WHERE clauses. Correlated subqueries, in general, degrade performance.

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