SQL NULL Functions | COALESCE, ISNULL, NULLIF, IS (NOT) NULL | #SQL Course 18

Visually explained how SQL NULL functions handle missing data using COALESCE, ISNULL, NULLIF, and IS (NOT) NULL.
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📖 *Table of Content*
00:00 Intro
00:25 What is NULL?
01:23 What are NULL Functions?
03:23 ISNULL
07:35 COALESCE
12:59 COALESCE vs ISNULL
14:33 Handle NULL – Data Aggregation
18:12 Handle NULL – Mathematical Operators
24:23 Handle NULL – Joining Tables
31:28 Handle NULL – Sorting Data
37:01 NULLIF
40:53 NULLIF – Division by Zero
42:58 IS NULL – IS NOT NULL
46:44 Left Anti Join – Right Anti Join

This course is perfect for data analysts, data engineers, data scientists, software developers, and students—covering everything from the basics to advanced SQL topics.
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