How do you drop the current redo log group in standby database?

How do you drop the current redo log group in standby database?

Drop Redo Logs on Standby

1. Check the Status of the Online Redolog Group.
2. Stop Redo Apply:
3. Set STANDBY_FILE_MANAGEMENT to MANUAL.
4. Clear the Online Redo Logfile Group:
5. Drop the Online Redo Logfile Group:
6. Set STANDBY_FILE_MANAGEMENT to AUTO.
7. Start Redo Apply:

How do I delete a redo log?

In case you want to clear out your Redo Log files in a situation of an unexpected failure or corruption, you can use the alter table clear logfile command as follows: Sql>alter database clear logfile group 3; Clearing an Unarchived Redo Log File.

How do I make a redo log inactive?

Ensure your redo log group is INACTIVE by querying V$LOG. If ACTIVE, switch the log (ALTER SYSTEM SWITCH LOGFILE) and wait until the status is INACTIVE. Next, drop the online redo log (with the ALTER DATABASE DROP LOGFILE GROUP x) command.

How do I move the online redo log?

How to relocate the redo log files to a different location on…

1. Shut down the database.
2. Copy the online redo log files to the new location.
3. Startup the database in mount mode, but do not open it.
4. Rename the online redo log members.
5. Open the database for normal operation.

How do I drop and recreate redo logs in standby database?

On Standby Server:

1. Cancel the Redo log apply service running.
2. Change the STANDBY_FILE_MANAGEMENT to MANUAL from AUTO in Standby Server.
3. Add or Drop the Redo log file in Standby:
4. Change the STANDBY_FILE_MANAGEMENT parameter value to AUTO.
5. Start the applied log service on standby.

How do I drop a redo log in Oracle 12c?

To drop specific inactive redo log members, use the ALTER DATABASE statement with the DROP LOGFILE MEMBER clause. The following statement drops the redo log /oracle/dbs/log3c. rdo : ALTER DATABASE DROP LOGFILE MEMBER ‘/oracle/dbs/log3c.

How do you rename redo log file online or offline give the command?

Startup the database, mount, but do not open it. Rename the redo log members. Use the ALTER DATABASE statement with the RENAME FILE clause to rename the database redo log files. ALTER DATABASE RENAME FILE ‘/diska/logs/log1a.

How many redo log groups are required by Oracle?

two groups
An instance requires at least two groups of redo log files, regardless of the number of members in the groups. (A group comprises one or more members.) You can drop a redo log group only if it is inactive. If you need to drop the current group, first force a log switch to occur.

How do I drop a standby redo log group in Oracle 11g?

How to drop the standby redo logs

1. Enviroment.
2. SET STANDBY_FILE_MANAGEMENT=’MANUAL’
3. Drop SRL On Standby.
4. SET STANDBY_FILE_MANAGEMENT=’AUTO’
5. Enable MRP.
6. Enviroment.
7. SET STANDBY_FILE_MANAGEMENT=’MANUAL’
8. Drop SRL On Standby.

How do you rename redo log file online or offline?

To rename redo log members, you must have the ALTER DATABASE system privilege….

1. Shut down the database.
2. Copy the redo log files to the new location.
3. Startup the database, mount, but do not open it.
4. Rename the redo log members.

How do I rename a redo log file in standby database?

To move or rename a logfile do the following.

1. Shutdown the database.
2. Rename the physical file on the OS.
3. Start the database in mount mode.
4. Issue the ALTER DATABASE RENAME FILE command to rename the file within the Oracle dictionary.
5. Open the database.

How do I add a redo log group in Oracle 12c?

To create a new group of redo log files, use the SQL statement ALTER DATABASE with the ADD LOGFILE clause. The following statement adds a new group of redo logs to the database: ALTER DATABASE ADD LOGFILE (‘/oracle/dbs/log1c.

How to drop a redo log group in SQL?

Drop a redo log group with the SQL statement ALTER DATABASE with the DROP LOGFILE clause. The following statement drops redo log group number 3: When a redo log group is dropped from the database, and you are not using the Oracle Managed Files feature, the operating system files are not deleted from disk.

Is it permissible to drop a redo log file?

It is permissible to drop redo log files so that a multiplexed redo log becomes temporarily asymmetric. For example, if you use duplexed groups of redo log files, you can drop one member of one group, even though all other groups have two members each.

How to change the location of the redo log?

For changing the location of Online REDO Logs, the best option is to create new REDO log Groups and drop the old REDO log Groups once the old logs status changes to “inactive/unused”. Steps are given in the above section. You can use the V$INSTANCE_RECOVERY view column OPTIMAL_LOGFILE_SIZE to determine the size of your online redo logs.

How to drop a redolog file in Oracle?

Begin dropping the redolog groups with STATUS=’INACTIVE’ – As mentioned earlier Oracle will not allow you to drop a current online redolog file. sql > alter database drop logfile group 1; cd /u50/oradata/test rm redo1a.log cd /u51/oradata/test rm redo1b.log Recreate group with both members –