SQL GROUP BY clause

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The GROUP BY clause is used to group the identical data by one or more columns. It is used with the aggregate functions in the select statement.

Syntax: 

SELECT column1, column2,…, columnN FROM tableName 
WHERE[conditions] GROUP BY column1, column2 …; 

Example: 

SELECT EMP_NAME, SUM(SALARY) FROM EMPLOYEE GROUP BY EMP_NAME;

Output: 

EMP_NAME	SUM(SALARY)
Nidhi	        48000
Parbhjot	81000
Parmender	90000

 
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