code: def _all_datatable_data(self):
          
          dtbl = self.datatable
          objs = object_session(self)
          imcols = [dtbl.c.indx, dtbl.c.final, dtbl.c.override_feed000, dtbl.c.failsafe_feed999]
          cols = imcols[:3] + [c for c in dtbl.c if c not in (imcols)] + [imcols[3]]
          if isinstance(dtbl, Table):
              return objs.query(*cols).order_by(dtbl.c.indx).all()
          else:
              raise Exception("Symbol has no datatable")
docs: Returns
          -------
          A list of tuples representing rows from all columns of the datatable,
          sorted accordingly.