SQL How to Handle NULL values?
Автор: The Code Samples
Загружено: 2025-08-01
Просмотров: 316
In this tutorial, we will learn how to handle NULL values in SQL — a key step to making your queries reliable. NULLs represent missing data, and ignoring them can lead to wrong results in reports, errors in joins, or even broken logic in filters. We’ll cover difference ways to handle nulls, including Case Statement, IS NULL, COALESCE(), and NULLIF() to make sure your queries behave the way you expect.
#datascience #coding #programming #sql #sqlnulls #advancesql #sqldeleteduplicates
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