Accessing LogMiner Operational Information in Views
LogMiner operational information (as opposed to redo data) is contained in the following views. You can use SQL to query them as you would any other view.
Shows information about a LogMiner dictionary file that was created using the STORE_IN_FLAT_FILE option to DBMS_LOGMNR.START_LOGMNR. The information shown includes information about the database from which the LogMiner dictionary was created.