To use LogMiner, you must supply it with a dictionary by doing one of the following:
Specify use of the online catalog by using the DICT_FROM_ONLINE_CATALOG
option when you start LogMiner. See "Using the Online Catalog".
Extract database dictionary information to the redo log files. See "Extracting a LogMiner Dictionary to the Redo Log Files".
Extract database dictionary information to a flat file. See "Extracting the LogMiner Dictionary to a Flat File ".