sql server 2005行列轉換

表

ProductID	OrderMonth	SubTotal
1	5	100.00
1	6	100.00
2	5	200.00
2	6	200.00
2	7	300.00
3	5	400.00
3	5	400.00

SELECT ProductID, [5] AS 五月, [6] AS 六月, [7] AS 七月
FROM
Sales.Orders PIVOT
(
SUM (Orders.SubTotal)
FOR Orders.OrderMonth IN
( [5], [6], [7] )
) AS pvt

ORDER BY ProductID;

 

把列轉成行用UNPIVOT,用處不大吧

CREATE TABLE MyPvt (ProductID int, 五月int, 六月 int, 七月int); --建立MyPvt表
GO
　　--将表5-5中所示的值插入到MyPvt表中

INSERT INTO MyPvt VALUES (1,100,100,0);
INSERT INTO MyPvt VALUES (2,200,200,200);
INSERT INTO MyPvt VALUES (3,800,0,0);

　　--执行UNPIVOT

SELECT ProductID, OrderMonth, SubTotal
FROM
　MyPvt UNPIVOT
　(SubTotal FOR OrderMonth IN
　　(五月, 六月, 七月)
　)AS unpvt;