Problem calling stored procedure.. Help!

[triperzonak]

using query.setforwardOnly(TRUE) is not working..

insert procedure

DELIMITER $$
 
DROP PROCEDURE IF EXISTS `MYDB`.`qtestproc`$$
CREATE PROCEDURE `qtestproc`(TABLENAME char(20),TABLEVALUES LONGTEXT)
 
BEGIN	
SET @s =CONCAT("INSERT INTO ",TABLENAME," values(",TABLEVALUES,")");
PREPARE stmt FROM @s;
EXECUTE stmt;
END$$
DELIMITER ;

DELIMITER $$

DROP PROCEDURE IF EXISTS `MYDB`.`qtestproc`$$
CREATE PROCEDURE `qtestproc`(TABLENAME char(20),TABLEVALUES LONGTEXT)

BEGIN	
SET @s =CONCAT("INSERT INTO ",TABLENAME," values(",TABLEVALUES,")");
PREPARE stmt FROM @s;
EXECUTE stmt;
END$$
DELIMITER ;

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qt code

QSqlQuery q;
	q.setForwardOnly( true);
	q.prepare("Call `MYDB`.`qtestproc`("mytable","values");
	q.exec();
	qDebug(q.lastError().text());

QSqlQuery q;
	q.setForwardOnly( true);
	q.prepare("Call `MYDB`.`qtestproc`("mytable","values");
	q.exec();
	qDebug(q.lastError().text());

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still got same error : MYDB.qtestproc cant return a result set in a given context QMYSQL3: unable to execute query

im using qt3.3.6 with QMYSQL3