sqlserver行转列

 1 --创建一个表
 2 create table PayPhoneMoney
 3 (
 4 id int identity(1,1),
 5 userName Nvarchar(20),
 6 payType nvarchar(20),
 7 money decimal,
 8 payTime datetime,
 9 constraint pk_id primary key(id)
10 )
11 --插入点数据
12 insert into PayPhoneMoney values('小李','支付宝',20,'2012-01-03')
13 insert into PayPhoneMoney values('小陈','工行',20,'2012-01-06')
14 insert into PayPhoneMoney values('小赵','交行',50,'2012-01-06')
15 insert into PayPhoneMoney values('小陈','支付宝',60,'2012-01-06')
16 insert into PayPhoneMoney values('小赵','工行',30,'2012-01-16')
17 insert into PayPhoneMoney values('小张','中行',30,'2012-01-16')
18 insert into PayPhoneMoney values('小李','支付宝',60,'2012-01-16')

1 -- 查一下每个人所有支付形式下的总钱数
2 select userName from PayPhoneMoney group by userName
3 select userName,
4 sum(case payType when '支付宝' then money else 0 end) as 支付宝 ,
5 sum(case payType when '工行' then money else 0 end) as 工行, 
6 sum(case payType when '交行' then money else 0 end) as 交行,
7 sum(case payType when '中行' then money else 0 end) as 中行
8 from PayPhoneMoney 
9 group by userName

1 declare @cmdText varchar(8000)
2 set @cmdText='select userName, '
3 select @cmdText=@cmdText+' sum(case payType when'''+payType+'''Then money else 0 end) as '''+payType
4 +''','+char(10) from (select Distinct payType from PayPhoneMoney) T
5 print @cmdText--发现多一个逗号下面把逗号去掉
6 set @cmdText=left(@cmdText,len(@cmdText)-2)--去掉逗号
7 set @cmdText=@cmdText+'from PayPhoneMoney group by userName'
8 print @cmdText
9 exec(@cmdText)