Redo

  A followup command to UNDO, the REDO command reverses the most recent
  function that was undone and replaces the original function.  The
  REDO replaces any LSE function except for the UNDO and REDO commands.

  Command Equivalent:

          REDO

  Related Topics:

          UNDO
          SET MAX_UNDO
          SHOW MAX_UNDO