DBA_LOGSTDBY_EVENTS displays information about the activity of the logical standby database system. It can be used to determine the cause of failures that occur when applying redo data to logical standby databases. This view is for logical standby databases only.

Column Datatype NULL Description
EVENT_TIME DATE   Time the event was logged
EVENT_TIMESTAMP TIMESTAMP(6)   Timestamp when the event was logged
CURRENT_SCN NUMBER   Change vector SCN for the change. If a failure occurred, then examine this column to determine which archived log file contains the source of the failure (for example, an unsupported record).
COMMIT_SCN NUMBER   SCN value on which the change was committed
XIDUSN NUMBER   Transaction ID undo segment number
XIDSLT NUMBER   Transaction ID slot number
XIDSQN NUMBER   Transaction ID sequence number
EVENT CLOB   Statement that was being processed when the failure occurred
STATUS_CODE NUMBER   Status (or Oracle error code) belonging to the STATUS message
STATUS VARCHAR2(2000)   Description of the current activity of the process or the reason why the apply operation stopped