public UsersExtCollection FetchAll()
 {
     UsersExtCollection coll = new UsersExtCollection();
     Query qry = new Query(UsersExt.Schema);
     coll.LoadAndCloseReader(qry.ExecuteReader());
     return coll;
 }
 public UsersExtCollection FetchByQuery(Query qry)
 {
     UsersExtCollection coll = new UsersExtCollection();
     coll.LoadAndCloseReader(qry.ExecuteReader());
     return coll;
 }