mysql存储过程查出的数据重复

BEGIN
  DECLARE sqlStr1 VARCHAR(2000);
  DECLARE i INT(10) DEFAULT 0;
  DECLARE k INT(10) DEFAULT 0;
  DECLARE seltable VARCHAR(2000);
  DECLARE _mon VARCHAR(20);
  DECLARE _bh VARCHAR(20);
  DECLARE _xm VARCHAR(100);
  DECLARE _bm VARCHAR(20);
  DECLARE _gw VARCHAR(20);
  DECLARE _jj VARCHAR(20);
  DECLARE Done INT DEFAULT 0; 
  DECLARE rs CURSOR FOR SELECT a.SYBH,a.XM,a.BMBH,a.GW from LQL170 a ;
  DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET Done = 1;
 
  DROP TABLE IF EXISTS tab_Ltext;
  SET seltable='';
  SET sqlStr1='';
  SET @sqlStr1 = CONCAT('CREATE TABLE tab_Ltext(month1 VARCHAR(20), bh VARCHAR(10),xm VARCHAR(100),bm VARCHAR(20),gw VARCHAR(100),jj VARCHAR(10))');
  PREPARE s FROM @sqlStr1;
  EXECUTE s;项目可行性研究报告 

  OPEN rs;
  REPEAT
  IF NOT Done THEN
  FETCH NEXT FROM rs INTO _bh,_xm ,_bm,_gw ; 
  INSERT INTO tab_Ltext(month1,bh,xm,bm,gw,jj) VALUES('2012/10',_bh,_xm,_bm,_gw,'1000');

  END IF;
  UNTIL Done END REPEAT;
  CLOSE rs;
  SELECT * FROM tab_Ltext;

END

请各位大哥帮看看~ 存储过程写的数据能出来，但是好像是循环多循环了一次，每次都是表最后一条数据出现两次，如果把FETCH NEXT FROM rs INTO _bh,_xm ,_bm,_gw ; 放在 INSERT 后面 那么第一条数据就是空的，有大神可以解决下吗？

去掉REPET UNTIL
 OPEN rs;
FETCH NEXT FROM rs INTO _bh,_xm ,_bm,_gw ;
  WHILE DONE=0 DO
  INSERT INTO tab_Ltext(month1,bh,xm,bm,gw,jj) VALUES(strRQ,_bh,_xm,_bm,_gw,'1000');
FETCH NEXT FROM rs INTO _bh,_xm ,_bm,_gw ;  
 END WHILE;   
   
 CLOSE rs;