取出分组的头一条记录
SELECT * FROM
(
Select
OrderId,Pro_Id,TotalPro_Count,RowCnt = ROW_NUMBER() OVER(PARTITION BY OrderId ORDER BY TotalPro_Count desc)
From
(
SELECT OrderId, Pro_Id, Sum(Pro_Count) as TotalPro_Count FROM Order_Pro_List
WHERE OrderId IN(2011081013367,2011072613014,2011082315204,2011082315779)
GROUP BY OrderId,Pro_Id --HAVING COUNT(Pro_Id) > 1
)
AS t
)
AS t2
WHERE RowCnt = 1
ORDER BY OrderId