SQL select values sum same ID

Question

This is my Table called "SAM"

ID  |   S_Date   |  S_MK |   TID   |   Value   |
===============================================
1   | 2012-12-11 |   1            


        

Answer 1

If you really need this result set, with grouping only by T_ID, you can use this query:

SELECT   (SELECT top 1 S_Date FROM SAM as t1 WHERE t1.TID = t2.TID) as S_Date,
         TID,
         SUM(Value) 
FROM     SAM as t2
GROUP BY TID