if object_id('Col_Row') is not null
 drop procedure Col_Row
go
create procedure Col_Row
 (@table_to_turn varchar(255),  --待旋转的表
 @key_col varchar(255),   --保留的关键字段
 @col_know_how varchar(255),  --生成列名的字段
 @col_to_turn varchar(255),  --作为值的字段
 @how_to varchar(20)='sum')  --生成值的方式 sum min max avg ,etc.
/*
过程作用，根据纵向数据生成新横向结构
Created by Rami
created date 2008-08-29
*/
as
declare @exec varchar(8000)
 
create table #tmp (col varchar(255))
 
set @exec='select distinct '+@col_know_how+ ' from '+@table_to_turn
insert into #tmp exec (@exec)
set @exec=''
 
select @exec=@exec+@how_to+'(case when ['+@col_know_how+']= '''+col+''' then ['+@col_to_turn +'] else null end ) as ['+col+'],'
from #tmp 
set @exec=left(@exec,len(@exec)-1)
set @exec='select ['+@key_col+'],'+@exec+' from ['+@table_to_turn+'] group by ['+@key_col+']'
 
exec(@exec)
go
--exec Col_Row 'empreceive','EmpCode','RpName','RPQty','sum'