1.CDO>  DEFINE PARTITION FIRST_BASELEVEL AUTOPURGE.
      CDO>  DEFINE PARTITION FRONT_END
      cont>   PARENT_PARTITION IS FIRST_BASELEVEL AUTOPURGE.
      CDO>  DEFINE PARTITION BACK_END
      cont>   PARENT_PARTITION IS FIRST_BASELEVEL
      cont>   LOOKASIDE_PARTITION IS FRONT_END AUTOPURGE.
      CDO>  CHANGE PARTITION FRONT_END
      cont>   LOOKASIDE_PARTITION IS BACK_END.

      In this example, the CHANGE PARTITION command adds a LOOKASIDE_
      PARTITION clause to the FRONT_END partition element. You add
      this clause in a CHANGE PARTITION command, rather than in the
      initial DEFINE PARTITION command, because the partition named
      in a LOOKASIDE_PARTITION clause must be an existing partition.

    2.CDO>  DEFINE PARTITION FINAL_REPORT AUTOPURGE.
      CDO>  DEFINE PARTITION PUBLICATION_RELEASE AUTOPURGE.
      CDO>  CHANGE PARTITION FINAL_REPORT
      cont>   PARENT_PARTITION IS PUBLICATION_RELEASE.

      In this example, the CHANGE PARTITION command adds a PARENT_
      PARTITION clause to the FINAL_REPORT partition element.

    3.CDO> DEFINE PARTITION FIRST_TESTBASELEVEL AUTOPURGE.
      CDO> CHANGE PARTITION FIRST_TESTBASELEVEL
      cont> AUDIT IS "LET'S PROMOTE ALL TEST VERSIONS" NOAUTOPURGE.

      In this example, the CHANGE PARTITION command adds an AUDIT
      clause and modifies the AUTOPURGE keyword.