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

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

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