Column USERNAME And SESSION_INFO Are UNKNOWN Or NULL In V$LOGMNR_CONTENTS
(Doc ID 110301.1)
Last updated on MARCH 13, 2019
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
You have just built the LogMiner dictionary and started the LogMiner session. You query V$LOGMNR_CONTENTS expecting to see the USERNAME and SESSION_INFO for some particular redo or undo operation.
However, the USERNAME field is NULL. This is NOT a recursive operation, and the USERNAME column is expected to contain a non-null value.
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