How do you find the Second highest Salary?

This is the most common question asked in Interviews.

EMPLOYEE table has fields EMP_ID and SALARY how do you find the second highest salary?

Answer:

We can write a sub-query to achieve the result

SELECT MAX(SALARY) FROM EMPLOYEE WHERE SALARY NOT IN (SELECT MAX(SALARY) FROM EMPLOYEE)

The first sub-query in the WHERE clause will return the MAX SALARY in the table, the main query SELECT’s the MAX SALARY from the results which doesn’t have the highest SALARY.


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