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Asked: 2026-05-25T23:09:02+00:00

second highest salary in table in sql select * from emp e where 2

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second highest salary in table in sql

select * from emp e where
 2 =(select count(distinct sal) from emp where e.sal<=sal)

I am unable to understand this query…can anyone help me.

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1 Answer

  1. Editorial Team

    Let’s analyze the inner query: you are selecting all the distinct salaries there are more or equal than a predefined salary, which is the salary of the outer query.

    So, for EVERY row, you are searching and counting all the other rows with a salary greater or equal that one, and you finally select the one which have a value of 2, which is exactly the second highest salary (because the second highest salary has just 2 salary greater or equal itself: the greater salary at all, and itself).

    Tremendous inefficent, because for every row you re-scan the entire table, but funny 🙂

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