OXID eShop - Redirect old seo urls

<?php
/**
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * @copyright (c) Proud Sourcing GmbH | 2013
 * @link https://gist.github.com/proudcommerce
 * @version 1.0.0
 **/
class daten
{
    var $dbServer;                        // database host name
    var $dbName;                          // database name
    var $dbUser;                          // database user name
    var $dbPassword;                      // database user password

    function daten()
    {
        require "config.inc.php";
    }
}

function newID() {
    return substr(uniqid( "", true), 0, 3) . uniqid( "", true);
}

$config     = new daten();
$dbServer   = $config->dbHost;
$dbName     = $config->dbName;
$dbUser     = $config->dbUser;
$dbPassword = $config->dbPwd;

$db = mysql_connect($dbServer, $dbUser, $dbPassword) or die(mysql_error());
mysql_select_db($dbName, $db) or die(mysql_error());
$sSQL = "SELECT oxid, nm_oldseourl FROM oxarticles WHERE nm_oldseourl != ''";
$aRes = mysql_query($sSQL);
if(mysql_num_rows($aRes) > 0)
{
    echo "saving old article seo urls ...<br>";
    while($aData = mysql_fetch_array($aRes))
    {
        $sArticleId = $aData["oxid"];
        $sSeoUrl = substr($aData["nm_oldseourl"], 1);
        $sSQL2 = "INSERT INTO oxseohistory (OXOBJECTID, OXSHOPID, OXIDENT) SELECT oxarticles.oxid, oxarticles.oxshopid, MD5(LOWER('$sSeoUrl')) from oxarticles where oxid = '$sArticleId'";
        echo $sSQL2."<br>";
        mysql_query($sSQL2);
    }
}

$sSQL = "SELECT oxid, nm_oldseourl FROM oxcategories WHERE nm_oldseourl != ''";
$aRes = mysql_query($sSQL);
if(mysql_num_rows($aRes) > 0)
{
    echo "<br>saving old category seo urls ...<br>";
    while($aData = mysql_fetch_array($aRes))
    {
        $sCategoryId = $aData["oxid"];
        $sSeoUrl = substr($aData["nm_oldseourl"], 1);
        $sSQL2 = "INSERT INTO oxseohistory (OXOBJECTID, OXSHOPID, OXIDENT) SELECT oxcategories.oxid, oxcategories.oxshopid, MD5(LOWER('$sSeoUrl')) from oxcategories where oxid = '$sCategoryId'";
        echo $sSQL2."<br>";
        mysql_query($sSQL2);
    }
}

mysql_close($db);

?>