alert for NOLOGGING - LogMiner requires logging to unload  table
  data

  Explanation:  This is an informational message reported  to  the
  user  when  NOLOGGING  is  seen  on a LogMiner enabled database.
  Logging of table rows is required to support LogMiner actions on
  the table.

  User  Action:   No  user  action  is  required,   but   database
  administrators should note that any rows inserted into the table
  prior to COMMIT will not been seen by RMU/UNLOAD/AFTER_IMAGE.