11. SQL Aggregate Functions Part 1: MIN(), MAX(), COUNT()
In this video, we explore essential SQL aggregate functions — MIN(), MAX(), and COUNT() — used to summarize data in powerful ways.
📌 What you'll learn:
How to use MIN() to find the smallest value in a column
How to use MAX() to find the largest value
How COUNT() works to count rows or non-null values
Practical use cases with real examples using the Northwind database
🧰 Tools Required:
SQL Server
SQL Server Management Studio (SSMS)
Northwind Sample Database
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