SQL : How can I use sub query in a query with group by section?

Question

How can I use sub query in a query with group by section?

I use SQL Server 2008 R2 AND Delphi 2010

I receive this error:

Cannot perform an aggreg         


        

Answer 1

Try this:

DECLARE @tbl1 AS TABLE
    (
     FCode INT
    ,DCode INT
    ,sen INT
    ,d1 INT
    ,d2 INT
    ,t_shab INT
    ,t_rooz INT
    ) ;

SELECT  *
FROM    (
         SELECT t1.sen
               ,SUM(t1.d1) AS d1
               ,SUM(t1.d2) AS d2
               ,SUM(t1.d1 + t1.d2) AS d_sum
               ,ROUND((SUM((1000 * (t1.d1 + t1.d2)) / (9500 - factor.factor))),
                      1) AS SSS
         FROM   @tbl1 AS t1
         INNER JOIN (
                     SELECT t1.sen
                           ,SUM(t2.t_shab + t2.t_rooz) AS factor
                     FROM   @tbl1 AS t2
                     INNER JOIN @tbl1 AS t1
                            ON t1.FCode = 81
                               AND t1.DCode = 1
                               AND t2.FCode = 81
                               AND t2.DCode = 1
                               AND t2.sen <= t1.sen
                     GROUP BY t1.sen
                    ) AS factor
                ON factor.sen = t1.sen
         WHERE  FCode = 81
                AND DCode = 1
         GROUP BY t1.sen
        ) AS X ;