Question

I have error syntax error in the following stored procedure :

DROP PROCEDURE IF EXISTS `SP_IncDecReferenceCount`;
CREATE DEFINER = `root`@`localhost` PROCEDURE `SP_IncDecReferenceCount`(pReferenceID int)
BEGIN
IF EXISTS(SELECT * from filesrefrences where filesrefrences.ReferenceID= pReferenceID and filesrefrences.RefrenceCount>1) then 
update filesrefrences
set 
    filesrefrences.RefrenceCount= filesrefrences.RefrenceCount-1
where 
        filesrefrences.ReferenceID= pReferenceID;
SELECT pReferenceID;
ELSE IF EXISTS(SELECT * from filesrefrences where filesrefrences.ReferenceID= pReferenceID) then 
DELETE from filesrefrences WHERE filesrefrences.ReferenceID = pReferenceID;
SELECT -77;
ELSE
SELECT -99;
end if ;
END;

the error is :
[Err] 1064 – You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ” at line 8

Answer 1

you need to change the DELIMITER. eg,

DROP PROCEDURE IF EXISTS `SP_IncDecReferenceCount`;

DELIMITER &&

CREATE PROCEDURE `SP_IncDecReferenceCount`(pReferenceID int)
BEGIN
    IF EXISTS(SELECT * from filesrefrences where filesrefrences.ReferenceID= pReferenceID and filesrefrences.RefrenceCount>1) then 
        update filesrefrences
        set 
            filesrefrences.RefrenceCount= filesrefrences.RefrenceCount-1
        where 
                filesrefrences.ReferenceID= pReferenceID;
        SELECT pReferenceID;
    ELSE IF EXISTS(SELECT * from filesrefrences where filesrefrences.ReferenceID= pReferenceID) then 
        DELETE from filesrefrences WHERE filesrefrences.ReferenceID = pReferenceID;
        SELECT -77;
    ELSE
        SELECT -99;
    end if ;
END &&

DELIMITER ;