Sql query not suporing group by

Question

hi expert all  ,
i want  to  use  group by in this query  but it is not suporting.
SELECT DISTINCT
T0.DocEntry,
(SELECT DISTINCT ISNULL(SUM(BaseSum), 0)
FROM          dbo.INV4
WHERE      (staType = 1) AND (DocEntry = T0.DocEntry) AND (LineNum = T1.LineNum))as value1
FROM         dbo.OINV AS T0 INNER JOIN
                      dbo.INV1 AS T1 ON T0.DocEntry = T1.DocEntry INNER JOIN
                      dbo.INV4 AS T3 ON T1.DocEntry = T3.DocEntry
WHERE     (T3.StaCode LIKE '%vat%4%')
the result  is
doc entry   value
45              100
46                 80
  46                70
  47                100
  47                  90
but i want to show 
doc entry   value
45              100
46               150
  47                190
please help me.

Answer 1

Hi,
Try this:
SELECT T0.DocEntry,SUM(T3.BaseSum) as 'Value1'
FROM dbo.OINV T0 INNER JOIN
dbo.INV4 T3 ON T0.DocEntry = T3.DocEntry
AND T3.staType = 1 AND T3.StaCode LIKE '%vat%4%'
GROUP BY T0.DocEntry
ORDER BY SUM(T3.BaseSum) DESC
Thanks,
Gordon