How do I enable archive log list?
How do I enable archive log list?
Enabling ARCHIVELOG mode
- Log in as user oracle and enter the following commands: $ export ORACLE_SID=
- To enable ARCHIVELOG mode status, enter the following SQL commands: SQL> Shutdown SQL> Startup mount SQL> Alter database archivelog; SQL> alter database open;
How do I restore archive logs?
To restore archived redo logs to a new location:
- Start RMAN and connect to a target database.
- Ensure that the database is mounted or open.
- Perform the following operations within a RUN command: Specify the new location for the restored archived redo logs using SET ARCHIVELOG DESTINATION .
What is archive log?
The archive log contains copies of closed log files that had been in the active log. The archive log is not needed for normal processing, but it is typically needed for recovery of the database.
Can I change the archive log destination while the database is running?
Expand Databases. Expand your database. Expand Instance and select Configuration. You can change the archive destination on the Recovery page.
How do I find my archive log list?
The following commands can be used to locate the Oracle archive logs:
- Issue the archive log list command: SQL> archive log list.
- Issue the show parameter command: SQL> show parameter db_recovery_file_dest.
- Query the v$archive_dest view: SQL> select dest_name, status, destination from v$archive_dest;
How do I view archive log mode?
Checking ARCHIVELOG mode status
- Log in as OS user oracle and enter the following commands: $ export ORACLE_SID= where is the name of the database $ sqlplus /nolog SQL> connect / as sysdba.
- To check the ARCHIVELOG mode status, enter the following SQL command: SQL> archive log list;
How do I restore missing archive logs from RMAN backup?
Step 1: uncatalog the required archivelogs from RMAN prompt RMAN>CHANGE ARCHIVELOG FROM LOGSEQ=60 UNTIL LOGSEQ=70 UNCATALOG; Once the archivelogs have been successfully uncataloged, you are now able to successfully restore the archive logs to a new location.
What are the uses of archived redo logs?
The archived redo log contains a copy of every group created since you enabled archiving. When the database is running in ARCHIVELOG mode, the log writer process (LGWR) cannot reuse and hence overwrite a redo log group until it has been archived.
Where do I find the archived log file?
V$ARCHIVED_LOG displays archived log information from the control file, including archive log names. An archive log record is inserted after the online redo log is successfully archived or cleared (name column is NULL if the log was cleared).
What happens to the archived log in Oracle?
An archive log record is inserted after the online redo log is successfully archived or cleared (name column is NULL if the log was cleared). If the log is archived twice, there will be two archived log records with the same THREAD#, SEQUENCE#, and FIRST_CHANGE#, but with a different name.
What does it mean when a log is archived twice?
If the log is archived twice, there will be two archived log records with the same THREAD#, SEQUENCE#, and FIRST_CHANGE#, but with a different name. An archive log record is also inserted when an archive log is restored from a backup set or a copy and whenever a copy of a log is made with the RMAN COPY command. Archived log file name.
How to tell if archived log is on standby?
This column is meaningful at the physical standby site for the ARCHIVED_LOG entries with REGISTRAR =’ RFS ‘ (which means this log is shipped from the primary to the standby database). If REGISTRAR =’ RFS ‘ and APPLIED is NO, then the log has arrived at the standby but has not yet been applied.