Find the employees who earn a salary greater than the average salary for their departments using a SQL query

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SQL Query
Find the employees who earn a salary greater than the average salary for their departments using a SQL query
ASKED: July 18, 2008  12:07 PM
UPDATED: April 13, 2011  6:24 AM

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The easiest method is to use a subquery as a JOIN in your <a href=”http://itknowledgeexchange.techtarget.com/sql-server/back-to-basics-the-select-statement/”>SELECT</a> Statement.

Something like this.

<pre>SELECT Employee.*
FROM Employee
JOIN (SELECT DepartmentId,
AVG(Salary) Salary
FROM Employee
GROUP By DepartmentId) SalaryInfo ON Employee.DepartmentId = SalaryInfo.DepartmentId
AND Employee.Salary > SalaryInfo.Salary</pre>

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