GROUP# |
NUMBER |
Log group number |
DBID |
VARCHAR2(40) |
Database ID of the primary database to which the standby redo logfile is assigned. If the standby redo logfile is unassigned, the value UNASSIGNED will be displayed. |
THREAD# |
NUMBER |
Log thread number |
SEQUENCE# |
NUMBER |
Log sequence number |
BYTES |
NUMBER |
Size of the log (in bytes) |
BLOCKSIZE |
NUMBER |
Block size of the logfile (512 or 4096) |
USED |
NUMBER |
Number of bytes used in the log |
ARCHIVED |
VARCHAR2(3) |
Archive status (YES) or (NO). See the STATUS column for further details. |
STATUS |
VARCHAR2(10) |
Log status:
-
UNASSIGNED - If ARCHIVED is NO, then the standby redo log has been archived and is again available. If ARCHIVED is YES, then the standby redo log has never been used and is available.
-
ACTIVE - If ARCHIVED is NO, then the standby redo log is complete and waiting to be archived. If ARCHIVED is YES, then the standby redo log is currently being written to and is therefore not ready to be archived. For a given thread, there should be only one such log.
|
FIRST_CHANGE# |
NUMBER |
Lowest SCN in the log |
FIRST_TIME |
DATE |
Time of the first SCN in the log |
NEXT_CHANGE# |
NUMBER |
All redo records contained within this log will have an SCN lower than NEXT_CHANGE#. Only filled in once the log is complete. Also the lowest SCN of any redo record in the next log. |
NEXT_TIME |
DATE |
All redo records contained within this log will have a timestamp lower than NEXT_TIME. Only filled in once the log is complete. Also the lowest timestamp of any redo record in the next log. |
LAST_CHANGE# |
NUMBER |
Last change number made to this datafile. Set to NULL if the datafile is being changed. |
LAST_TIME |
DATE |
Timestamp of the last change |
