MySQL Aggregate Functions - SUM,COUNT, MAX, MIN, AVG

MySQL Aggregate Functions - SUM,COUNT, MAX, MIN, AVG

In database management, an aggregate function or aggregation function, according to Wikipedia, is a function where the values of multiple rows are grouped to form a single summary value.

In database management, an aggregate function or aggregation function, according to Wikipedia, is a function where the values of multiple rows are grouped to form a single summary value.

There are different aggregate functions, such as SUM, COUNT, MAX, MIN, AVG, etc. In this tutorial, we’ll cover the most used aggregate function in detail.

Contents

Introduction

Basically an aggragate function performs a calculation on a set of values, and returns a single value.

Consider the table of author that we usually use in our SQL tutorials. For illustration we added salary column.

Author Tabl

Let’s see how it works.

mysql snippets mysql aggregate functions function

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