query distinct

[Gumble]

$cmd = "SELECT DISTINCT IDord FROM orders, objord WHERE objord.IDprod = '$_POST[IDproduct]'
AND orders.IDstate = 2
AND orders.IDord = objord.IDord";

$rs = mysql_query($cmd);
$rows = mysql_num_rows($rs);
//se ci sono comande pertinenti
if($rows > 0){
     while($aCart = mysql_fetch_array($rs)){

include('../orders/update_pending_orders.php');

}