public function ExecuteMultiQuery($query)
    {
        $result = $this->db->multi_query($query);
        if ($result)
        {
            while ($this->db->next_result()) {;} //overgo the results!
        }
        if (!$result)
        {
            throw new DBExceptions\DatabaseException('Error in multi query', 101, $query);
        }
    }