How do I open a standby database in read/write mode permanently?

How do I open a standby database in read/write mode permanently?

Open Standby in Read-write Mode When Primary is Lost

1. 1.) Open standby database in mount state :
2. 2.) Recover if there is any archive logs:
3. cancel.
4. 3.) Finish the Recovery process :
5. 4.) Activate the Standby Database :
6. 5.) Check the new status.
7. 6.) Open the Database.

How do you open standby database read/write mode and again how do you rollback what are options we have to use it?

Step 1 – In Standby database

1. SQL> ALTER SYSTEM SET DB_RECOVERY_FILE_DEST_SIZE=5G;
2. SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
3. SQL> select NAME,SCN,TIME from v$restore_point;
4. SQL> ALTER SYSTEM ARCHIVE LOG CURRENT;
5. SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_STATE_2=DEFER;

How do I activate standby?

Activate physical standby database

1. Step 1 (Optional) Identify and resolve any gaps in the archived redo log files.
2. Step 2 Initiate the failover operation on the target physical standby database.
3. Step 3 Convert the physical standby database to the primary role.
4. Step 4 Shut down and restart the new primary database.

How do I start managed recovery process in standby?

8.1. 1 Starting Up a Physical Standby Database

1. Start and mount the physical standby database: SQL> STARTUP MOUNT;
2. Start Redo Apply or real-time apply: To start Redo Apply, issue the following statement: SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE 2> DISCONNECT FROM SESSION;

How do I open a standby database?

To open a standby database for read-only access when it is currently shut down:

1. Start the Oracle instance for the standby database without mounting it: SQL> STARTUP NOMOUNT;
2. Mount the standby database: SQL> ALTER DATABASE MOUNT STANDBY DATABASE;
3. Open the database for read-only access: SQL> ALTER DATABASE OPEN READ ONLY;

Can we open standby database?

Cancel managed recovery and open the physical standby database for read-only access using the following SQL statements: SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL; SQL> ALTER DATABASE OPEN READ ONLY; Opening the physical standby database for read-only access allows you to add a temporary file.

How do I stop MRP standby?

To stop the MRP, issue the following sql statement. ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL; Earlier on RAC environments, MRP process can be run only from one instance on standby site.

How to open physical standby database in read write mode?

SQL> alter database activate standby database; Database altered. SQL> alter system set log_file_name_convert=’+DGROUP1/prod/onlinelog/’,’/database/oradata/’ scope=spfile; System altered. SQL> shudown immediate ORA-01109: database not open Database dismounted.

Why is snapshot standby open in read write mode?

A snapshot Standby is open in the read-write mode and hence it is possible to process transactions independently of the primary database. At the same time, it maintains protection by continuing to receive data from the production database, archiving it for later use.

How to open Oracle database in read write mode?

SQL> select open_mode from v$database; OPEN_MODE ———- READ ONLY SQL> shu immediate Database closed. Database dismounted. ORACLE instance shut down. SQL> startup mount ORACLE instance started.