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

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

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