How to find maximum avg

Question

I am trying to display the maximum average salary; however, I can\'t seem to get it to work.

I can get a list of the average salaries to display with:

Answer 1

using WITH clause it can be done as

with averagesal as (
select dept_id d_id, avg(sal) avgsal from emp_details group by dept_id)
select * from averagesal where avgsal = (select max(avgsal) from averagesal);