21-Aggregate Functions in SQL | SUM | COUNT | AVG | MAX | MIN | Important Interview Query | COUNT(*)

Are you new to SQL and looking to learn the basics quickly? Look no further! This tutorial is designed for beginners and will teach you the fundamentals of SQL .
So what are you waiting for? Grab your coffee and let's get started!

📚 SQL Practice Questions -

Key Moments-
Aggregate Functions - 00:40
COUNT() - 02:16
SUM() - 06:16
AVG() - 08:00
MIN() - 09:39
MAX() - 11:18

🔶Create Employee Table

🔶Insert Data into Employee Table

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[mostaphadahmane]

Hello, my sweet teacher I hope you're doing well, I thank you so much for this helpful video and i hope you s good luck --- Mostapha from Algeria

[vitthalsabale]

Hi Saloni, Thank you for sharing your SQL videos, it help lots of students who is beginner.
I am getting below error while trying to find SUM or AVG salary from Department column using SUM & AVG functions on SQL server

Msg 8117, Level 16, State 1, Line 27
Operand data type varchar is invalid for sum operator.