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YouTubeManish Sharma

Most SQL Developers Get This Wrong #sql #tutorial

Most SQL learners get NULL completely wrong — and it silently breaks their queries without a single error message. In this video, you will learn exactly why NULL = NULL returns FALSE in SQL, why you should never use = NULL in your WHERE clause, and how NULL behaves differently in COUNT, JOINs, and aggregations. This is one of the most common ...

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🤯 SQL Joins Explained for Marketers: INNER, LEFT, RIGHT & FULL JOIN (with Real Examples)

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