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

select max(a.high)Avg_highest_salary,
       e.dept 
from  (
    select avg(salary) high,dept from emp group by dept) a,
    emp e 
where  a.dept = e.dept
group by   e.dept
order by   max(a.high) desc

It will show the high Average highest salary first with dept

If you don't want to show the Salary with Dept then you can use this

select max(avg(salary)) max_avg_salary
from emp
group by dept;