text: from django.contrib.gis.db.backends.base.features import BaseSpatialFeatures
  from django.db.backends.oracle.features import \
      DatabaseFeatures as OracleDatabaseFeatures
  
  
  class DatabaseFeatures(BaseSpatialFeatures, OracleDatabaseFeatures):
      supports_add_srs_entry = False
      supports_geometry_field_introspection = False
      supports_geometry_field_unique_index = False
      supports_perimeter_geodetic = True
  