【转】SQLServer 行列互换

http://www.cnblogs.com/NewLand/archive/2007/09/03/880540.html

--行列互换

Use tempdb

Go

Create table test ( [name] char(10), km char(10) , cj int )

Go

--初始化数据

insert into test values('张三','语文',80)

insert into test values('张三','数学',86)

insert into test values('张三','英语',75)

insert into test values('李四','语文',78)

insert into test values('李四','数学',85)

insert into test values('李四','英语',78)

Go

select name,sum(case km when '语文' then cj end) as 语文,

sum(case km when '数学' then cj end) as 数学,

sum(case km when '英语' then cj end) as 英语

from test

group by name