public function isExpiredUpdateId($sKey)
    {
        $oDb = \OxidEsales\Eshop\Core\DatabaseProvider::getDb();
        $sQ = "select 1 from " . $this->getViewName() . " where oxupdateexp >= " . time() . " and MD5( CONCAT( oxid, oxshopid, oxupdatekey ) ) = " . $oDb->quote($sKey);

        return !((bool) $oDb->getOne($sQ));
    }