public CustomerdemographicCollection FetchByQuery(Query qry)
        {
            CustomerdemographicCollection coll = new CustomerdemographicCollection();

            coll.LoadAndCloseReader(qry.ExecuteReader());
            return(coll);
        }
        public CustomerdemographicCollection FetchAll()
        {
            CustomerdemographicCollection coll = new CustomerdemographicCollection();
            Query qry = new Query(Customerdemographic.Schema);

            coll.LoadAndCloseReader(qry.ExecuteReader());
            return(coll);
        }