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Write an SQL query to find employees who have a higher salary than the average salary of their department.

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Vinay Kumar

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Nov 09, 2024 6:09 am

(@Vinay Kumar)

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To find employees whose salary is higher than the average salary of their department, you can use a subquery that calculates the average salary for each department.

SQL Statement:

Explanation:

The subquery (SELECT AVG(salary) FROM employees WHERE department_id = e.department_id) calculates the average salary for each department.
The WHERE clause in the main query compares the salary of each employee to the average salary of their respective department.
The query returns employees who earn more than the average salary of their department.

Example Scenario: Consider an employees table:

employee_id	name	department_id	salary
1	John	101	80000
2	Alice	102	90000
3	Bob	101	85000
4	Carol	103	95000
5	Dave	101	75000
6	Eve	102	88000

Query Result: This query would return:

employee_id	name	department_id	salary
3	Bob	101	85000
2	Alice	102	90000
4	Carol	103	95000

Employees John, Dave, and Eve are excluded because their salaries are not higher than their department's average.

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