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SQL COUNT Explained: COUNT(*), COUNT(column), and COUNT(DISTINCT)

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Jul 24, 2025
8:22

In this quick SQL tutorial, you’ll learn how to use the COUNT() function in different ways: COUNT(*) – Count total rows in a table COUNT(column) – Count non-null values in a specific column COUNT(DISTINCT column) – Count unique, non-null values This guide helps you understand how COUNT works in SQL. Perfect for beginners learning SQL or preparing for data analyst interviews! ⏱️ Timestamps: 00:00 – Introduction 00:23 – How to count total rows using COUNT(*) 02:10 – How to count non-null values in a column with COUNT(column) 04:34 – How to count unique values using COUNT(DISTINCT column) 🔔 Don’t forget to like, subscribe, and drop your questions in the comments!

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SQL COUNT Explained: COUNT(*), COUNT(column), and COUNT(DISTINCT) | NatokHD