How to Write a Query in SQL to Count - Search Videos

7 Simple Tricks to Instantly Make Your SQL Queries Better

7 Simple Tricks to Instantly Make Your SQL Queries Better

Want to write SQL that looks like it was written by a senior developer? In this video, I’ll show you 7 simple tricks that will instantly improve your SQL - from avoiding SELECT * to using CTEs, writing index‑friendly filters, and understanding COUNT(*) vs COUNT(column) correctly. If you want to practice these concepts with real SQL ...

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