Question

I want to know if its possible to get the functionality of group by with using it.
I need to find average without using group by.
basically I am looking for an alternative for the below simple query without using group by.

SELECT 
  AVG(salary)
  , g.emp_id 
FROM #emp e ,#salary d 
WHERE e.emp_id=d.emp_id 
GROUP BY e.emp_id

Answer 1

One option

SELECT  e.emp_id ,
    ( SELECT    AVG(salary)
      FROM      #salary d
      WHERE     d.emp_id = e.emp_id )
FROM    #emp e