Question

I want to return multiple rows in case statement. is it possible? or is there any alternate way to do it?

select 
   case 
      when 3 = 1 
          then (select orderid from order_master where noOfInstallment = installmentPaid) 
      else 
          (select orderid from order_master where noOfInstallment <> installmentPaid) 
   END

Both sub queries returns multiple rows. Now above query showing following error.

Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used
as an expression.

Answer 1

I got solution.

 SELECT o.* FROM Order_Master as o Where 
   (
      ((@paymentStatus = 0) AND (o.noOfInstallment <> o.installmentPaid))
      OR 
      ((@paymentStatus=1) AND (o.noOfInstallment = o.installmentPaid)) 
   )