MODIFY SUBPARTITION subpartition { { { allocate_extent_clause | deallocate_unused_clause } | { LOB LOB_item) | (VARRAY varray } modify_LOB_storage_parameters [ LOB LOB_item) | (VARRAY varray } modify_LOB_storage_parameters]... } | [REBUILD] UNUSABLE LOCAL INDEXES }
For information on the symbols and conventions of Backus-Naur Form (BNF) syntax, see Appendix A.