SQL Group By

The SQL Group By statement is used to group identical values ​​into summary rows such as "Search the number of users in each state". The GROUP BY statement is often used with aggregate functions and follows the WHERE clause in a select statement.

Group By Syntax :

The syntax of the Group By is −

SELECT column1, column2
FROM table_name
WHERE [ conditions ]
GROUP BY column1, column2
ORDER BY column1, column2

Group By Example :

Consider the Customer table with the following records -

TEST CASE 1 :- The following code is an example, which would select the Address and sum of CustomerSalary from the Customer table GROUP BY Address.

SELECT Address, SUM(CustomerSalary) FROM Customer
GROUP BY Address;

The result for the respective sql query is as follows −

TEST CASE 2:- The following code is an example, which would select the Age and sum of CustomerSalary from the Customer table GROUP BY Age.

SELECT Age, SUM(CustomerSalary) FROM Customer
GROUP BY Age;

The result for the respective sql query is as follows −

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