Today I will write just a short blog post to do a quick reminder! I still hear a lot of people suggesting CTEs because they think it works like a temporary table (you populate the table and then it can be/is reutilized). It doesn’t! From de documentation : Specifies a temporary named result set, known as a common table expression (CTE). Maybe they are focusing on the “temporary” word. Using the CTE two times will perform two different executions!

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Cláudio Silva

Data Platform Architect and PowerShell lover.

Data Platform Architect