Điều này có thể sẽ giúp bạn có được hầu hết các con đường đến đó. Tôi đã không đưa ra logic để di chuyển các cột tóm tắt xung quanh vì điều đó sẽ chỉ hoạt động cho hai danh mục và tôi cho rằng bạn có nhiều cột khác.
CREATE TABLE #Master(ItemNo int,[Name] varchar(50), Category varchar(5))
INSERT INTO #Master VALUES(10001,'Apple','C1' )
INSERT INTO #Master VALUES(10002, 'Coffee' ,'C1')
INSERT INTO #Master VALUES(10003,'Bread','C2')
INSERT INTO #Master VALUES(10004,'Beans' ,'C2')
CREATe TABLE #Transactions(SiteID int,BusinessDate date,ItemName varchar(50),[Units Sold]int,[Units Sale]int,ItemNo int, OrderNo varchar(20))
INSERT INTO #Transactions VALUES(1,'06/08/2018','Apple',1,5,10001,'122-1')
INSERT INTO #Transactions VALUES(1,'06/08/2018','Coffee',1,16,10002,'122-1')
INSERT INTO #Transactions VALUES(1,'06/08/2018','Bread',2,7,10003,'122-1')
INSERT INTO #Transactions VALUES(1,'06/08/2018','Beans',9,18,10004,'122-1')
INSERT INTO #Transactions VALUES(1,'06/08/2018','Apple',2,5,10001,'122-4')
INSERT INTO #Transactions VALUES(1,'06/08/2018','Coffee',2,6,10002,'122-4')
INSERT INTO #Transactions VALUES(1,'06/08/2018','Bread',1,7,10003,'122-4')
INSERT INTO #Transactions VALUES(1,'06/08/2018','Beans',4,8,10004,'122-4')
INSERT INTO #Transactions VALUES(2,'06/08/2018','Apple',2,5,10001,'122-2')
INSERT INTO #Transactions VALUES(2,'06/08/2018','Coffee',1,6,10002,'122-2')
INSERT INTO #Transactions VALUES(3,'06/08/2018','Bread',3,5,10003,'122-3')
INSERT INTO #Transactions VALUES(3,'06/08/2018','Beans',7,17,10004,'122-3')
;WITH CTE AS (
select MS.ItemNo,MS.Name,MS.Category, SUM(TR.[Units Sold]) RootItemSold, tr.OrderNo
from #Master MS
INNER JOIN #Transactions TR on MS.ItemNo = TR.ItemNo
GROUP BY MS.ItemNo,MS.Name,MS.Category, tr.OrderNo
),
MiddleCalc as
(
select ItemNo, [Name],Category,RootItemSold,OrderNo
,(SELECT ISNULL(SUM(1),0) FROM CTE T2 where TRoot.OrderNo = t2.OrderNo and TRoot.Category <> t2.Category) HasOtherCategory
from CTE TRoot
)
SELECT ItemNo,[Name],[Category],
CASE WHEN Category = 'C1' THEN
SUM(RootItemSold)
ELSE
SUM(CASE WHEN HasOtherCategory <> 0 THEN RootItemSold ELSE 0 END) END C1,
CASE WHEN Category = 'C2' THEN
SUM(RootItemSold)
ELSE
SUM(CASE WHEN HasOtherCategory <> 0 THEN RootItemSold ELSE 0 END) END C2
FROM MiddleCalc
GROUP BY ItemNo,[Name],[Category]