SQL Null Values - Search Videos

SQL Episode 6 Null Values

YouTubeQa Online Academy

SQL Episode 6 Null Values

In this video, we provide a complete introduction to NULL Values in SQL and explain what NULL means in a database. You will learn how NULL represents missing or unknown data and why it is different from values like zero or an empty string. The video also demonstrates how to identify and filter NULL values when writing SQL queries. This lesson ...

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