sql 分割字符串

create function [dbo].[f_splitStr](
	@s varchar(8000),	--待分拆的字符串,如'1,11,21,31'
	@split varchar(10)	--分隔符,如','
)returns @re table(id int,col varchar(8000))
as 
begin
	declare @i int
	set @i=1
	while charindex(@split,@s)>0
	begin
		insert @re values(@i,left(@s,charindex(@split,@s)-1))
		set @s=stuff(@s,1,charindex(@split,@s)+len(@split)-1,'')
		set @i=@i+1
	end
	if len(@s)<>0
		insert @re values(@i,@s)
	return
end