SQL$HELP72.HLB  —  Errors  SQL_ERRORS, EXP_CDD_NODATA
  Exporting a repository with NODATA is not allowed

  Explanation:  You used the NODATA option when exporting a
  repository database.

  User Action:  You cannot use the NODATA option when exporting
  data dictionaries.  The repository cannot use the resulting
  database.  Use the DATA option and try again.
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