sql2008 将行转为字符串， 将字符串转为行 互转

--将行转为字符串
select stuff((select top 20 ','+ QQ from dl_QQ where uiid=1 order by tim desc for xml path('')),1,1,'')

-- =============================================

-- Description:	将字符串转为表格
/*
	例：select * from [f_split]('spu0987*5//spu0988*5/spu0989*5', '/')
	--将表格转为字符串
	DECLARE @S nVARCHAR(max)
SELECT @S=ISNULL(@S+',','')+[col] FROM [f_split]('spu0987*5//spu0988*5/spu0989*5', '/')
PRINT @S
*/
-- =============================================
create function [dbo].[strToTab](@c varchar(max),@split varchar(2))
returns @t table(col nvarchar(255))
as
    begin  

      while(charindex(@split,@c)<>0)
        begin
          insert   @t(col)   values   (substring(@c,1,charindex(@split,@c)-1))
          set   @c   =   stuff(@c,1,charindex(@split,@c),'')
        end
      insert   @t(col)   values   (@c)
      return
    end