สอบถามการ Update ข้อมูลหลายฐานข้อมูลในคำสั่งเดียวค่ะ

$strSQL = "UPDATE Member SET Password = '".md5($_POST['txtPassword'])."' WHERE UserID = '".$_SESSION["UserID"]."' ";
	$objQuery = mssql_query($strSQL);

<?
	session_start();
	if($_SESSION['UserID'] == "")
	{
		echo"<meta http-equiv=refresh content=0;url=./index.php>";
		exit();
	}
	mssql_connect("local","sa","123456");
	mssql_select_db("database1");
	
	if($_POST["txtPassword"] != $_POST["txtConPassword"])
	{
		echo "<script language=\"JavaScript\">";
		echo "alert('รหัสผ่านไม่ตรงกัน!!');";
		echo "</script>";
		echo"<meta http-equiv=refresh content=0;url=./changepass.php>";
		exit();
	}
	$strSQL = "UPDATE Member SET Password = '".md5($_POST['txtPassword'])."' WHERE UserID = '".$_SESSION["UserID"]."' ";
	$objQuery = mssql_query($strSQL);
	
	echo "<script language=\"JavaScript\">";
	echo "alert('เปลี่ยนรหัสผ่านเรียบร้อย!');";
	echo "</script>";
	echo"<meta http-equiv=refresh content=0;url=./logout.php>";
	
	mssql_close();
?>