SQL Server Queries Part 12 - Correlated Subqueries

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By Andrew Gould

https://www.wiseowl.co.uk - A correlated subquery is a subquery which depends on an outer query for its values. If that doesn't make much sense, this video attempts to explain exactly what that means. You'll see how to build simple correlated subqueries, including why it's necessary to use table aliases, along with an explanation of what happens when you execute the query.

You can see a written explanation of correlated subqueries here:
https://www.wiseowl.co.uk/blog/s339/correlated-subqueries.htm

You can download the script to create the Movies database used in this video at the following link:
https://www.wiseowl.co.uk/files/execise-question-files/qf-898.zip

You can see the range of resources and courses we offer in SQL Server here:
https://www.wiseowl.co.uk/sql/

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Видео SQL Server Queries Part 12 - Correlated Subqueries канала WiseOwlTutorials