ข้อสงสัยระหว่างการ Query ผ่านทาง AppServ กับการเขียน PHP เพื่อ Query

$max=" SELECT max(value),element,scormid from mdl_scorm_scoes_track 
	WHERE scormid = '20' AND element = '$element' 
	GROUP BY value 
        ORDER BY value ";
$query=mysql_query($max);
while($Rs=mysql_fetch_array($query)){ echo $Rs['max(value)'];}

SELECT max(value),element,scormid from mdl_scorm_scoes_track 
WHERE scormid = '20' AND element = '$element' 
GROUP BY value 
ORDER BY value

SELECT max(value),element,scormid from mdl_scorm_scoes_track
 WHERE scormid = '20' AND element = 'cmi.core.score.raw' 
GROUP BY value ORDER BY value

cmi.core.score.raw