PIVOT行转列，UNPIVOT列转行

USE AdventureWorks2008R2;
GO
SELECT VendorID, [250] AS Emp1, [251] AS Emp2, [256] AS Emp3, [257] AS Emp4, [260] AS Emp5
FROM 
(SELECT PurchaseOrderID, EmployeeID, VendorID
FROM Purchasing.PurchaseOrderHeader) p
PIVOT
(
COUNT (PurchaseOrderID)
FOR EmployeeID IN
( [250], [251], [256], [257], [260] )
) AS pvt
ORDER BY pvt.VendorID;

--Create the table and insert values as portrayed in the previous example.
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
--Unpivot the table.
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

create?table?test(id?int,name?varchar(20),quarter?int,profile?int)?
insert?into?test?values(1,'a',1,1000)
insert?into?test?values(1,'a',2,2000)
insert?into?test?values(1,'a',3,4000)
insert?into?test?values(1,'a',4,5000)
insert?into?test?values(2,'b',1,3000)
insert?into?test?values(2,'b',2,3500)
insert?into?test?values(2,'b',3,4200)
insert?into?test?values(2,'b',4,5500)
select?*?from?test

--行转列
select?id,name,
[1]?as?"一季度",
[2]?as?"二季度",
[3]?as?"三季度",
[4]?as?"四季度",
[5]?as?"5"
from
test
pivot
(
sum(profile)
for?quarter?in
([1],[2],[3],[4],[5])
)
as?pvt


create?table?test2(id?int,name?varchar(20),?Q1?int,?Q2?int,?Q3?int,?Q4?int)
insert?into?test2?values(1,'a',1000,2000,4000,5000)
insert?into?test2?values(2,'b',3000,3500,4200,5500)
select?*?from?test2

--列转行
select?id,name,quarter,profile
from
test2
unpivot
(
profile
for?quarter?in
([Q1],[Q2],[Q3],[Q4])
)?
as?unpvt