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SELECT * from dbo.uf_Split('aa@aa.com,bb@bb.com,cc@cc.com,dd@dd.com',',');
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subid      autoid
aa@aa.com 1
bb@bb.com 2
cc@cc.com 3
dd@dd.com 4
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CREATE   FUNCTION [dbo].[uf_Split](@str VARCHAR(max),@splitchar CHAR(1))      
RETURNS  @t TABLE(subid VARCHAR(1000),autoid INT) AS       
/*      
subject:splitº¯Êý(ĿǰֻÄܶԵ¥¸ö×Ö·û½øÐзָ²»ÄÜÒÔ´Ê×鷽ʽ·Ö¸î)      
author:kq zhou     
create date:2009-4-1      
*/      
BEGIN      
      
DECLARE @substr VARCHAR(max)      
SET @substr=@str      
DECLARE @i INT,@j INT      
SET @j=LEN(REPLACE(@str,@splitchar,REPLICATE(@splitchar,2)))-LEN(@str)--»ñÈ¡·Ö¸î·û¸öÊý      
IF @j=0      
BEGIN      
  INSERT INTO @t VALUES (@substr,1) --ûÓзָî·ûÔò²åÈëÕû¸ö×Ö´®       
END      
ELSE      
BEGIN      
 SET @i=0      
 DECLARE @m int      
 WHILE @i<=@j      
 BEGIN      
   IF(@i<@j)      
   BEGIN      
    SET @m=CHARINDEX(@splitchar,@substr)-1 --»ñÈ¡·Ö¸î·ûµÄǰһλÖà      
    INSERT INTO @t VALUES(LEFT(@substr,@m),@i+1)       
    SET @substr=RIGHT(@substr,LEN(@substr)-(@m+1)) --È¥³ýÒÑ»ñÈ¡µÄ·Ö¸î´®£¬µÃµ½»¹ÐèÒª¼ÌÐø·Ö¸îµÄ×Ö·û´®      
   END      
  ELSE      
   BEGIN      
     INSERT INTO @t VALUES(@substr,@i+1)--¶Ô×îºóÒ»¸ö±»·Ö¸î


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