Question

I have a (sql server 2008) query as follows:

 Select *, column1+column2 as alias1
 From complaints
 Order by 
 Case 
   When @param1 = 'filedate' then filedate
   When @param1 = 'calc' then alias1
 End

This doesn’t work, because ordering on an alias in a case statement is not allowed, it doesn’t recognize alias1.

Is there another way this can be done?

Thanks

Answer 1

either put it in a CTE and then order by…

; with cteQuery as (Select *, column1+column2 as alias1 from complaints)
SELECT * from cteQuery Order by 
Case 
   When @param1 = 'filedate' then filedate
   When @param1 = 'calc' then alias1
 End

or just duplicate what the alias actually refers to…

Select *, column1+column2 as alias1
 From complaints
 Order by 
 Case 
   When @param1 = 'filedate' then filedate
   When @param1 = 'calc' then column1+column2
 End