7.102 V$BACKUP_REDOLOG

V$BACKUP_REDOLOG displays information about archived logs in backup sets from the control file.

Note that online redo logs cannot be backed up directly; they must be archived first to disk and then backed up. An archive log backup set can contain one or more archived logs.

Column Datatype Description

RECID

NUMBER

Record ID for this row; it is an integer that identifies this row

STAMP

NUMBER

Timestamp used with RECID to uniquely identify this row

SET_STAMP

NUMBER

One of the foreign keys for the row of the V$BACKUP_SET table that identifies this backup set

SET_COUNT

NUMBER

One of the foreign keys for the row of the V$BACKUP_SET table that identifies this backup set

THREAD#

NUMBER

Thread number for the log

SEQUENCE#

NUMBER

Log sequence number

RESETLOGS_CHANGE#

NUMBER

Change number of the last resetlogs before the log was written

RESETLOGS_TIME

DATE

Change time of the last resetlogs before the log was written. These will be the same for all logs in a backup set.

FIRST_CHANGE#

NUMBER

SCN when the log was switched into. The redo in the log is at this SCN and greater.

FIRST_TIME

DATE

Time allocated when the log was switched into

NEXT_CHANGE#

NUMBER

SCN when the next log in this thread was switched into. The redo in the log is below this SCN.

NEXT_TIME

DATE

Time when the next log in this thread was switched into

BLOCKS

NUMBER

Size of the log in logical blocks including the header block

BLOCK_SIZE

NUMBER

Size of the log blocks in bytes

TERMINAL

VARCHAR2(3)

Indicates whether this record corresponds to a terminal archived redo log, as defined in V$ARCHIVED_LOG (YES) or not (NO)

CON_ID

NUMBER

The ID of the container to which the data pertains. Possible values include:

  • 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

  • 1: This value is used for rows containing data that pertain to only the root

  • n: Where n is the applicable container ID for the rows containing data