5.2 RC_ARCHIVED_LOG

This view contains historical information about archived and unarchived redo log files. It corresponds to the V$ARCHIVED_LOG view in the target database control file.

Oracle inserts an archived redo log record after the online redo log is successfully archived. If a log that has not been archived is cleared, then a record is inserted with the NAME column set to NULL. If the log is archived multiple times, then the view contains multiple archived log records with the same THREAD#, SEQUENCE#, and RESETLOGS_CHANGE#, but with a different name.

An archived log record is also inserted when an archived log is restored from a backup set or a copy. An archived log can have no record if the record ages out of the control file.

Column Data Type Description

DB_KEY

NUMBER

The primary key for this database in the recovery catalog. Use this column to join with almost any other catalog view.

DBINC_KEY

NUMBER

The primary key for the incarnation of the target database to which this record belongs. Use this column to join with RC_DATABASE_INCARNATION.

DB_NAME

VARCHAR2(8)

The DB_NAME of the database incarnation to which this record belongs.

AL_KEY

NUMBER

The primary key of the archived redo log in the recovery catalog. If you issue the LIST command while RMAN is connected to the recovery catalog, then this value appears in the KEY column of the output.

RECID

NUMBER

The archived redo log RECID from V$ARCHIVED_LOG. RECID and STAMP form a concatenated primary key that uniquely identifies this record in the target database control file.

STAMP

NUMBER

The archived redo log stamp from V$ARCHIVED_LOG. RECID and STAMP form a concatenated primary key that uniquely identifies this record in the target database control file.

NAME

VARCHAR2(1024)

The file name of the archived redo log.

THREAD#

NUMBER

The number of the redo thread.

SEQUENCE#

NUMBER

The log sequence number.

RESETLOGS_CHANGE#

NUMBER

The SCN of the most recent RESETLOGS when the record was created.

RESETLOGS_TIME

DATE

The time stamp of the most recent RESETLOGS when the record was created.

FIRST_CHANGE#

NUMBER

The first SCN of this redo log.

FIRST_TIME

DATE

The time when Oracle switched into the redo log.

NEXT_CHANGE#

NUMBER

The first SCN of the next redo log in the thread.

NEXT_TIME

DATE

The first time stamp of the next redo log in the thread.

BLOCKS

NUMBER

The size of this archived log in operating system blocks.

BLOCK_SIZE

NUMBER

The size of the block in bytes.

COMPLETION_TIME

DATE

The time when the redo log was archived or copied.

ARCHIVED

VARCHAR2(3)

Indicates whether the log was archived: YES (archived redo log) or NO (inspected file header of online redo log and added record to V$ARCHIVED_LOG). Inspecting the online logs creates archived log records for them, which allows them to be applied during RMAN recovery. Oracle sets ARCHIVED to NO to prevent online logs from being backed up.

STATUS

VARCHAR2(1)

The status of the archived redo log: A (available), U (unavailable), D (deleted), or X (expired).

IS_STANDBY

VARCHAR2(3)

The database that archived this log: Y (belongs to a standby database) or N (belongs to the primary database).

DICTIONARY_BEGIN

VARCHAR2(3)

Indicates whether this archived log contains the start of a LogMiner dictionary: YES or NO.

If both DICTIONARY_BEGIN and DICTIONARY_END are YES, then this log contains a complete LogMiner dictionary. If DICTIONARY_BEGIN is YES but DICTIONARY_END is NO, this log contains the start of the dictionary, and it continues through each subsequent log of this thread and ends in the log where DICTIONARY_END is YES.

DICTIONARY_END

VARCHAR2(3)

Indicates whether this archived log contains the end of a LogMiner dictionary: YES or NO. See the description of DICTIONARY_BEGIN for an explanation of how to interpret this value.

IS_RECOVERY_DEST_FILE

VARCHAR2(3)

This copy is located in the fast recovery area: YES or NO.

COMPRESSED

VARCHAR2(3)

Internal only

CREATOR

VARCHAR2(7)

Creator of the archived redo log:

  • ARCH - Archiver process

  • FGRD - Foreground process

  • RMAN - Recovery Manager

  • SRMN - RMAN at standby

  • LGWR - Log Writer process

TERMINAL

VARCHAR2(3)

Indicates whether this log was created during terminal recovery of a standby database. Values are YES or NO.

SITE_KEY

NUMBER

Primary key of the Data Guard database associated with this file. Each database in a Data Guard environment has a unique SITE_KEY value. You can use SITE_KEY in a join with the RC_SITE view to obtain the DB_UNIQUE_NAME of the database.