SQL Window Functions vs GROUP BY: When to Use Each | Nagasudha S posted on the topic | LinkedIn
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SQL Window Functions vs GROUP BY: When to Use Each | Nagasudha S posted on the topic | LinkedIn
I would like to share my learning today. What I learned is the importance of using 'WINDOW' function over 'GROUP BY'. If I want to find highest salary in each department, I will use GROUP BY function as stated below: SELECT department, MAX(salary) AS high_salary FROM Employees GROUP BY department; But when we need to include the emp_id, emp ...
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