SQL How to Handle NULL values? скачать в хорошем качестве

SQL How to Handle NULL values?

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 👉SQL Tutorials Playlist:    • SQL Tutorials   👉SQL Shorts Playlist:    • SQL Shorts   👉Python Shorts Playlist:    • Плейлист   👉Python Tutorials Playlist:    • Python Tutorials   👉Excel Shorts Playlist:    • Excel Shorts