{ storage_clause
| PCTVERSION integer
| RETENTION
| FREEPOOLS integer
| REBUILD FREEPOOLS
| { CACHE
  | { NOCACHE | CACHE READS } [ logging_clause ]
  }
| allocate_extent_clause
| shrink_clause
| deallocate_unused_clause
}
  [ storage_clause
  | PCTVERSION integer
  | RETENTION
  | FREEPOOLS integer
  | REBUILD FREEPOOLS
  | { CACHE
    | { NOCACHE | CACHE READS } [ logging_clause ]
    }
  | allocate_extent_clause
  | shrink_clause
  | deallocate_unused_clause
  ]...