SQL server 动态行转列

用聚合函数配合CASE语句实现行转列功能：

现在分享一下具体实现代码：

转换前效果：

PlanName	PlanType	PlanLimit
计划1	计划类型1	RMB 1,000,000
计划1	计划类型2	RMB 1,000,000
计划1	计划类型3	RMB 1,000,000
计划2	计划类型1	RMB 1,000,000
计划2	计划类型2	RMB 1,000,000
计划2	计划类型3	RMB 1,000,000
计划3	计划类型1	RMB 1,000,000
计划3	计划类型2	RMB 1,000,000
计划3	计划类型3	RMB 1,000,000

1、静态实现行转列

 with main as
 (
     select '计划1' as PlanName,'计划类型1' as PlanType,'RMB 1,000,000' as PlanLimit
     union all
     select '计划1' as PlanName,'计划类型2' as PlanType,'RMB 1,000,000' as PlanLimit
     union all
     select '计划1' as PlanName,'计划类型3' as PlanType,'RMB 1,000,000' as PlanLimit
     union all
     select '计划2' as PlanName,'计划类型1' as PlanType,'RMB 1,000,000' as PlanLimit
     union all
     select '计划2' as PlanName,'计划类型2' as PlanType,'RMB 1,000,000' as PlanLimit
     union all
     select '计划2' as PlanName,'计划类型3' as PlanType,'RMB 1,000,000' as PlanLimit
     union all
     select '计划3' as PlanName,'计划类型1' as PlanType,'RMB 1,000,000' as PlanLimit
     union all
     select '计划3' as PlanName,'计划类型2' as PlanType,'RMB 1,000,000' as PlanLimit
     union all
     select '计划3' as PlanName,'计划类型3' as PlanType,'RMB 1,000,000' as PlanLimit
 )
 select PlanType as [计划]
     ,'计划1'=max(case PlanName when '计划1' then PlanLimit else null end)
     ,'计划2'=max(case PlanName when '计划2' then PlanLimit else null end)
     ,'计划3'=max(case PlanName when '计划3' then PlanLimit else null end)
 from main
 where =
 group by PlanType

2、动态实现行转列

 -- =============================================
 -- Author:        <Anne>
 -- Create date: <//>
 -- Description:    <查询SP_AnneTest表的数据>
 -- =============================================
 CREATE PROCEDURE [dbo].[SP_AnneTest]
 (
 )
 AS
     declare @sql varchar()
 BEGIN
     set @sql=''

     select @sql=@sql+','+''''+[PlanName]+''''+'=max(case PlanName when '''+[PlanName]+''' then PlanLimit else null end)'
     from main
     where =
     group by PlanType
     set @sql='select PlanType as [''计划'']'+@sql+'
             from main
             where =
             group by PlanType'

     print @sql
     exec(@sql)

 END
 GO

实现效果：

计划	计划1	计划2	计划3
计划类型1	RMB 1,000,000	RMB 1,000,000	RMB 1,000,000
计划类型2	RMB 1,000,000	RMB 1,000,000	RMB 1,000,000
计划类型3	RMB 1,000,000	RMB 1,000,000	RMB 1,000,000