Хранимые процедуры

if (!$mysqli->query("DROP PROCEDURE IF EXISTS Find_Form") ||
    !$mysqli->query('

CREATE PROCEDURE Find_Form(IN Param1 Nvarchar(50)) READS SQL DATA BEGIN
      	DECLARE Lemma1 Nvarchar(50);
    DECLARE Okon1 Nvarchar(50);
    DECLARE Osnov Nvarchar(50);
    DECLARE SOsnov Nvarchar(50);
    DECLARE i1, forma1, Kod_MPosl, ROWCOUNT1 int;
    DECLARE DublPARAM1 NVarchar(50);
    DECLARE WG1 nvarchar(3);
    
    SET DublParam1=RTRIM(Param1);
    SET i1=1;
    
    
    WHILE i1<=LENGTH(DublParam1) Do
       SET Lemma1=SUBSTRING(DublParam1,0,i1);
       SET Okon1="";
       SET Osnov="";
       SET SOsnov="";
       SET Okon1=RTRIM(SUBSTRING(DublParam1,i1,100));
       SET forma1=0;
       SET WG1="";
       SET ROWCOUNT1=0;
       IF Okon1 != ""  THEN 
               SET Kod_MPosl=0;              
               SELECT c.forma, WG, Dict_Form, SDICT_FORM, count(SDICT_FORM) INTO forma1,WG1,Osnov,SOsnov,ROWCOUNT1 FROM T_BASE c 
                    WHERE c.SDICT_FORM=Lemma1 AND KolWord=1;
               
              IF ROWCOUNT1!= 0  THEN 
                  IF ROWCOUNT1=1 THEN 
                    IF Forma1 != 0 AND EXISTS(SELECT * FROM T_okon b WHERE okon=Okon1 AND b.forma = forma1 AND instr(WG1,b.WG)>0) THEN 
                      SELECT Lemma1+Okon1 as Slovoforma,Comm as Hint, Lemma1+M_Rule as Morf_Anal, WG1 as WG FROM M_Posled_1 a 
                          WHERE a.Kod_MPosl IN
                            (SELECT b.Kod_M_Posl FROM T_okon b
                               WHERE okon=Okon1 AND b.forma = forma1 AND instr(WG1,b.WG)>0) ;
                      END IF;
                   ELSE  
                     IF EXISTS(SELECT * FROM T_okon b WHERE okon=Okon1) THEN 
                       SELECT Lemma1+Okon1 as Slovoforma,Comm as Hint, Lemma1+M_Rule, M_1 as WG FROM M_Posled_1 a
                         WHERE a.Kod_MPosl IN
                           (SELECT b.Kod_M_Posl FROM T_okon b
                              WHERE okon=Okon1 AND 
                                    b.forma IN (SELECT c.forma FROM T_Base c
                                           WHERE c.SDICT_FORM=Lemma1 AND KolWord=1 )) ;
		      END IF;			   
                   END IF;                        
              END IF;                                         
          ELSE
            IF EXISTS(SELECT * FROM T_BASE c WHERE c.SDICT_FORM=Lemma1 AND KolWord=1) THEN
              SELECT Lemma1,N"основа",WG1 as WG;
			END IF;  
	  END IF;
              SET i1=i1+1;
 END WHILE; 
     END;

')) {
    echo "Не удалось создать хранимую процедуру: (" . $mysqli->errno . ") " . $mysqli->error;
}