转:SQL2008 UNPIVOT 列转行示例

CREATE TABLE pvt (VendorID int, Emp1 int, Emp2 int,

    Emp3 int, Emp4 int, Emp5 int);

GO

INSERT INTO pvt VALUES (1,4,3,5,4,4);

INSERT INTO pvt VALUES (2,4,1,5,5,5);

INSERT INTO pvt VALUES (3,4,3,5,4,4);

INSERT INTO pvt VALUES (4,4,2,5,5,4);

INSERT INTO pvt VALUES (5,5,1,5,5,5);

GO

select * from pvt

SELECT VendorID, Employee, Orders

FROM

   (SELECT VendorID, Emp1, Emp2, Emp3, Emp4, Emp5

   FROM pvt) p

UNPIVOT

   (Orders FOR Employee IN

      (Emp1, Emp2, Emp3, Emp4, Emp5)

)AS unpvt;

GO