Aggregate functions are normally used in conjunction with a GROUP BY clause. The GROUP BY clause enables you to use aggregate functions to answer more complex managerial questions such as: What is the average salary of employees in each department? How many employees work in each department? How many employees are working on a particular project? - Study24x7
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trilok sharma
26 Apr 2019 10:48 AM study24x7 study24x7

Aggregate functions are normally used in conjunction with a GROUP BY clause. The GROUP BY clause enables you to use aggregate functions to answer more complex managerial questions such as: What is the average salary of employees in each department? How many employees work in each...

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