SQL SERVER key value 實現轉置功能

--1生成測試表
CREATE TABLE [dbo].[TABLEA](
[WO] [varchar](50) NOT NULL,
[ColoumnName] [varchar](50) NULL,
[ColoumnValue] [varchar](50) NULL,

) 
insert into [TABLEA]
values('PRD_100000048','SN','SN001')
insert into [TABLEA]
values('PRD_100000048','PO','PO001')
insert into [TABLEA]
values('PRD_100000048','Version','VersionO001')


select * from [TABLEA]


--2.實現轉置
DECLARE @WO varchar(50)

set @WO='PRD_100000048'

DECLARE @ColumnList varchar(5000)

SELECT @ColumnList=STUFF(( SELECT  ',[' + ColoumnName+']'

                    FROM    ( SELECT distinctColoumnName  FROMdbo.[TABLEA]

          wherewo=@WO

                            ) T1

                  FOR

                    XMLPATH('')

                  ),1, 1, '')

 

print @ColumnList

 

 

declare @SQL varchar(max)

set @SQL='

select *from 

  ( select [WO], [ColoumnName], [ColoumnValue]from [TABLEA] where wo='''+@WO+''' ) P

PIVOT( 

  MAX(ColoumnValue) for p.[ColoumnName] in( 

    '+@ColumnList+'

  ) 

) AS PVT

'

exec(@SQL)