Before you upgrade a repository or use the REPOSITORY EXPORT command,
  check the following:

   o  Ensure that you have SYSPRV or BYPASS privilege

   o  Check the paging file quota (PGFLQUOTA)

      The .CDDX export file requires approximately one half the number of
      blocks used by the CDD$DATABASE.RDB file.

      The following table lists the PGFLQUOTA values required for the
      upgrade:

       CDD$DATABASE.RDB Size        Required PGFLQUOTA
      ---------------------------------------------------
            0-20,000 blocks        50,000-200,000 pages
       20,000-35,000 blocks        70,000-200,000 pages
       35,000-55,000 blocks       100,000-200,000 pages
       55,000 + blocks                    200,000 pages
      ---------------------------------------------------

   o  Verify the repository

   o  If you do not have an adequate backup of your repository, perform a
      backup operation.

      See the instructions in the Oracle CDD/Repository User's Guide for
      verifying and backing up a repository.

   o  If you issue the REPOSITORY EXPORT command directly from the DCL
      level, redefine the CDD$SEPARATOR as a slash character (/) if any
      repository elements contain a period (.) in the name.

   o  If you are installing Oracle CDD/Repository, check for the
      SYS$SHARE:CDA$ACCESS.EXE image, which is required by the upgrade
      images.

      Also, if you installing Oracle CDD/Repository and the process you
      are in was created before the installation, log out and log back in
      again before executing the CDD$UPGRADE.COM procedure (or run
      CDD$UPGRADE.COM from the installing account) to update DCL
      commands.