MODIFY DEFAULT ATTRIBUTES
   [ FOR partition_extended_name ]
   [ deferred_segment_creation ]
   [ indexing_clause ]
   [ segment_attributes_clause ]
   [ table_compression ]
   [ PCTTHRESHOLD integer ]
   [ key_compression ]
   [ alter_overflow_clause ]
   [ { LOB (LOB_item) | VARRAY varray } (LOB_parameters) ]...