The challenge is to find the employees with the second highest salary in each department. However, it is a little more complicated because if two employees have the same salary, you need to list both of them.
Solution to TSQL Beginners Challenge 1
select EmployeeID ,EmployeeName ,Department ,Salary from ( select * ,DENSE_RANK() over(partition by department order by salary desc) SR from @Employees ) SO where SR = 2
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