MySQL Tutorial

A database system used with PHP.

Chapter Quiz Exercises
Course Topics
MySQL Intro MySQL SELECT MySQL SELECT DISTINCT MySQL WHERE MySQL ORDER BY MySQL AND, OR, NOT MySQL INSERT INTO MySQL NULL Values MySQL UPDATE MySQL DELETE MySQL LIMIT MySQL MIN() and MAX() MySQL COUNT(), AVG(), SUM() MySQL LIKE MySQL IN MySQL BETWEEN MySQL Aliases MySQL INNER JOIN MySQL LEFT JOIN MySQL RIGHT JOIN MySQL GROUP BY MySQL HAVING MySQL Create DB MySQL Drop DB MySQL Create Table MySQL Drop Table MySQL Alter Table MySQL Constraints MySQL Auto Increment MySQL Views

MySQL GROUP BY

The MySQL GROUP BY Statement

The GROUP BY statement groups rows that have the same values into summary rows, like "find the number of customers in each country".

The GROUP BY statement is often used with aggregate functions (COUNT, MAX, MIN, SUM, AVG) to group the result-set by one or more columns.

Syntax:

SELECT column_name(s)
FROM table_name
WHERE condition
GROUP BY column_name(s);

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Topics
MySQL Intro MySQL SELECT MySQL SELECT DISTINCT MySQL WHERE MySQL ORDER BY MySQL AND, OR, NOT MySQL INSERT INTO MySQL NULL Values MySQL UPDATE MySQL DELETE MySQL LIMIT MySQL MIN() and MAX() MySQL COUNT(), AVG(), SUM() MySQL LIKE MySQL IN MySQL BETWEEN MySQL Aliases MySQL INNER JOIN MySQL LEFT JOIN MySQL RIGHT JOIN MySQL GROUP BY MySQL HAVING MySQL Create DB MySQL Drop DB MySQL Create Table MySQL Drop Table MySQL Alter Table MySQL Constraints MySQL Auto Increment MySQL Views