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

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

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