protected function _updateArticleVarName($sUpdate, $sArtId)
    {
        $oDb = \OxidEsales\Eshop\Core\DatabaseProvider::getDb();
        $sUpdate = "update oxarticles set " . $sUpdate . " where oxid = " . $oDb->quote($sArtId);
        $oDb->Execute($sUpdate);
    }