IS NULL and IS NOT NULL Explained | SQL Fundamentals
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YouTubeZero to Data Analyst
IS NULL and IS NOT NULL Explained | SQL Fundamentals
📌 YouTube Description (Final Optimized) Struggling to understand how to handle NULL values in SQL? This video will help you master IS NULL, IS NOT NULL, IFNULL, and COALESCE with clear and practical examples. In this tutorial, you’ll learn: 👉 What NULL really means in SQL 👉 Why NULL cannot be compared using = or != 👉 How to use IS ...
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