ปัญหา mysql_query ครับ คือผมทำเว็บบอร์ด โดยใช้โค้ดนี้

include('config.inc.php');
$sql = "select * from quiz where id_quiz=$id_quiz";
$dbquery = mysql_query($sql);
$result = mysql_fetch_array($dbquery);
$id_quiz = $result[id_quiz];
$title = $result[title];
$name = $result[name];
$message = $result[message];
$date_q = $result[date_q];
if ($dbquery) {
     echo ("Yess");
     echo $dbquery;
}else{
     echo ("Noo!!!");
     echo $dbquery;
}

$dbquery = mysql_query($sql);