SQL中字符串拆分通用函数

ALTER FUNCTION uf_StrSplit
(@origStr varchar(7000), --待拆分的字符串
@markStr varchar(100))   --拆分标记，如','
RETURNS @splittable table
(
str_id   varchar(4000) NOT NULL, --编号ID
string   varchar(2000) NOT NULL --拆分后的字符串
)
AS
BEGIN
declare @strlen int,@postion int,@start int,@sublen int,@TEMPstr varchar(200),@TEMPid int
SELECT @strlen=LEN(@origStr),@start=1,@sublen=0,@postion=1,@TEMPstr='',@TEMPid=0

if(RIGHT(@origStr,1)<>@markStr )
begin
set @origStr = @origStr + @markStr
end
WHILE((@postion<=@strlen) and (@postion !=0))
BEGIN
IF(CHARINDEX(@markStr,@origStr,@postion)!=0)
BEGIN
   SET @sublen=CHARINDEX(@markStr,@origStr,@postion)-@postion;
END
ELSE
BEGIN
   SET @sublen=@strlen-@postion+1;

END
IF(@postion<=@strlen)
BEGIN
   SET @TEMPid=@TEMPid+1;
   SET @TEMPstr=SUBSTRING(@origStr,@postion,@sublen);
   INSERT INTO @splittable(str_id,string) values(@TEMPid,@TEMPstr)
   IF(CHARINDEX(@markStr,@origStr,@postion)!=0)
   BEGIN
    SET @postion=CHARINDEX(@markStr,@origStr,@postion)+1
   END
   ELSE
   BEGIN
    SET @postion=@postion+1
   END
END
END

RETURN
END