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Oracle9i Recovery Manager Reference
Release 2 (9.2)

Part Number A96565-01
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Recovery Catalog Views, 18 of 28


RC_LOG_HISTORY

This view lists historical information about the online redo logs. RMAN adds a new row during a catalog resynchronization whenever Oracle has switched out of the online redo log. This catalog view corresponds to the V$LOG_HISTORY view.

Column Datatype Description

DB_KEY

NUMBER

The primary key for the target database. Use this column to form a join with almost any other catalog view.

DBINC_KEY

NUMBER

The primary key for the incarnation of the target database. Use this column to form a join with RC_DATABASE_INCARNATION.

DB_NAME

VARCHAR2(8)

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

RECID

NUMBER

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

STAMP

NUMBER

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

THREAD#

NUMBER

The thread number of the online redo log.

SEQUENCE#

NUMBER

The log sequence number of the redo log.

FIRST_CHANGE#

NUMBER

The SCN generated when switching into the redo log.

FIRST_TIME

DATE

The time stamp when switching into the redo log.

NEXT_CHANGE#

NUMBER

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

CLEARED

VARCHAR2(3)

YES if the redo log was cleared with the ALTER DATABASE CLEAR LOGFILE statement; otherwise, NULL. This statement allows a log to be dropped without archiving it first.


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