mysql_query Problem

[JuraX]

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 '[online-hiorg].[alert] SET id = "1", wache = "{$wache}"' at line 1

$connection=mysql_connect($mysqlhost, $mysqluser, $mysqlpwd) or die ("Verbindungsversuch fehlgeschlagen");  
 mysql_select_db($mysqldb, $connection) or die("Konnte die Datenbank $mysqldb nicht waehlen.");  
  
  
 $sql = 'UPDATE [online-hiorg].[alert]  
    SET  
            `id` = "1",  
			`wache` = "{$wache}",  
			`fahrzeuge` = "{$fahrzeug}",  
			`strasse` = "{$strase}",  
			`plz` = "{$plz}",  
			`ort` = "{$ort}",  
			`fon` = "{fon}",  
			`stichwort` = "{$stichwort}",  
			`object` = "{$objekt}",  
			`mitteiler` = "{$mitvon}",  
			`masnahme` = "{$masnahme}",  
			`kommentar` = "{$kommentar}",  
			  
    WHERE `alert`.`id` = 1 LIMIT 1';  
  
$adressen_query = mysql_query($sql) or die(mysql_error());

leider nicht...