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How to write query second highest salary in for Employee in SQL

To write query second highest salary in for Employee in SQL there are many way to achieve this I am sharing here some sample examples. Select * from(select deptno,sal,dense_rank() over (partition by deptno order by sal desc)r from emp) where r=2 select empno,ename,sal,deptno, row_number() over(partition by deptno order by sal desc)rn from emp )select * from cte where rn=2 Select max(sal)from emp  Where sal <(select max(sal) from emp) Select deptno, max(salary) from(Select a.deptno,a.salary from employee a, (Select deptno,max(salary) from employee group by deptno) b where a.deptno=b.deptno And a.salary<b.salary) group by deptno;