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The Ultimate Guide to SQL CTEs

Master common table expressions in 5 minutes

Skyler Dale
Towards Data Science
5 min readJun 27, 2021

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Common table expressions (CTEs) are a SQL functionality that allows you to perform complex, multi-step transformations in a single easy-to-read query. Because of their power, readability, and flexibility, they are a useful tool for beginners and experts alike.

How do they work?

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