1 --靜態的行轉列
 2 --新建一個科目成績表
 3 --三個欄位：學生名稱，科目，成績
 4 CREATE TABLE SubjectScore 
 5 (
 6     StuName nvarchar(20),
 7     SubjectName nvarchar(20),
 8     Fraction decimal(16,2)
 9 )
10 
11 --插入4條資料
12 INSERT INTO SubjectScore
13 VALUES(N'孔子',N'語文',99)
14 
15 INSERT INTO SubjectScore
16 VALUES(N'孔子',N'數學
 
',80)
17 
18 INSERT INTO SubjectScore
19 VALUES(N'諸葛',N'語文',75.5)
20 
21 INSERT INTO SubjectScore
22 VALUES(N'諸葛',N'數學',66)
23 
24 --行轉列
25 SELECT StuName,
26 ISNULL(SUM(case SubjectName when N'語文' then isnull(Fraction,0)end),0)as N'語文',
27 ISNULL(SUM(case SubjectName when N'數學' then isnull(Fraction,0)end
 
),0)as N'數學'
28 FROM SubjectScore
29 GROUP BY StuName
30 
31 --如果加了個英語科目怎麼辦？沒錯，程式碼要改
32 --下面我們加個英文科目
33 INSERT INTO SubjectScore
34 VALUES(N'諸葛',N'英語',66)
35 
36 --修改程式碼後行轉列
37 SELECT StuName,
38 ISNULL(SUM(case SubjectName when N'語文' then isnull(Fraction,0)end),0)as N'語文',
39 ISNULL(SUM(case SubjectName when
 
 N'數學' then isnull(Fraction,0)end),0)as N'數學',
40 ISNULL(SUM(case SubjectName when N'英語' then isnull(Fraction,0)end),0)as N'英語'
41 FROM SubjectScore
42 GROUP BY StuName