      bare_select_suffix = " FROM DUAL"
      uppercases_column_names = True
      # select for update with limit can be achieved on Oracle, but not with the current backend.
      supports_select_for_update_with_limit = False
  
      def introspected_boolean_field_type(self, field=None, created_separately=False):
          """
          Some versions of Oracle -- we've seen this on 11.2.0.1 and suspect
          it goes back -- have a weird bug where, when an integer column is
 
</s>
    supports_temporal_subtraction = True
      bare_select_suffix = " FROM DUAL"
      uppercases_column_names = True
      # select for update with limit can be achieved on Oracle, but not with the current backend.
      supports_select_for_update_with_limit = False
    supports_temporal_subtraction = True
  
      def introspected_boolean_field_type(self, field=None, created_separately=False):
          """
          Some versions of Oracle -- we've seen this on 11.2.0.1 and suspect
          it goes back -- have a weird bug where, when an integer column is
keep keep keep add keep keep keep keep keep
 Fixed #24793 -- Unified temporal difference support.
django/db/backends/oracle/features.py