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
1 with main as 2 ( 3 select '计划1' as PlanName,'计划类型1' as PlanType,'RMB 1,000,000' as PlanLimit 4 union all 5 select '计划1' as PlanName,'计划类型2' as PlanType,'RMB 1,000,000' as PlanLimit 6 union all 7 select '计划1' as PlanName,'计划类型3' as PlanType,'RMB 1,000,000' as PlanLimit 8 union all 9 select '计划2' as PlanName,'计划类型1' as PlanType,'RMB 1,000,000' as PlanLimit 10 union all 11 select '计划2' as PlanName,'计划类型2' as PlanType,'RMB 1,000,000' as PlanLimit 12 union all 13 select '计划2' as PlanName,'计划类型3' as PlanType,'RMB 1,000,000' as PlanLimit 14 union all 15 select '计划3' as PlanName,'计划类型1' as PlanType,'RMB 1,000,000' as PlanLimit 16 union all 17 select '计划3' as PlanName,'计划类型2' as PlanType,'RMB 1,000,000' as PlanLimit 18 union all 19 select '计划3' as PlanName,'计划类型3' as PlanType,'RMB 1,000,000' as PlanLimit 20 ) 21 select PlanType as [计划] 22 ,'计划1'=max(case PlanName when '计划1' then PlanLimit else null end) 23 ,'计划2'=max(case PlanName when '计划2' then PlanLimit else null end) 24 ,'计划3'=max(case PlanName when '计划3' then PlanLimit else null end) 25 from main 26 where 1=1 27 group by PlanType
2、动态实现行转列
1 -- ============================================= 2 -- Author: <Anne> 3 -- Create date: <2016/04/27> 4 -- Description: <查询SP_AnneTest表的数据> 5 -- ============================================= 6 CREATE PROCEDURE [dbo].[SP_AnneTest] 7 ( 8 ) 9 AS 10 declare @sql varchar(8000) 11 BEGIN 12 set @sql='' 13 14 select @sql=@sql+','+''''+[PlanName]+''''+'=max(case PlanName when '''+[PlanName]+''' then PlanLimit else null end)' 15 from main 16 where 1=1 17 group by PlanType 18 set @sql='select PlanType as [''计划'']'+@sql+' 19 from main 20 where 1=1 21 group by PlanType' 22 23 print @sql 24 exec(@sql) 25 26 END 27 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 |