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I learned SQL in 15 minutes! Here's how
Learn SQL basics in just 15 minutes with this tutorial focused on using SQL with MySQL. Topics covered include: - What SQL is ...
description: "This unit summarizes key concepts related to aggregate functions and grouping in PostgreSQL. It reinforces the use of COUNT, SUM, AVG, MIN, MAX, and the GROUP BY and HAVING clauses to ...
I realized how much easier my life would be if SQL had a mode() aggregate function. (I'm using it in the mathematical sense). I'm guessing that either I use SQL in a wierd way or there is a good ...
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