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Contents
- 1 Snapshot standby configuration concept | open standby for read write for temporary purpose
- 2 How do you open physical standby for read/write test and flashback 19c?
- 3 How can we open the standby database as read write for testing and once testing is done need to revert to previous position but without using snapshot command?
- 4 How do I change my Oracle database from standby to primary?
- 5 How do I open a standby database in read write mode?
- 6 Information related to the topic oracle open standby database read write
Snapshot standby configuration concept | open standby for read write for temporary purpose
How do you open physical standby for read/write test and flashback 19c?
- Step 1 – In Standby database. A ) Set up a flash recovery area. …
- Step 2 – In Primary Database. …
- Step 3 – In Standby database. …
- Step 4 – In Standby database. …
- Step 5 – In standby database.
How do I open a physical standby database?
- Start the Oracle instance for the standby database without mounting it: SQL> STARTUP NOMOUNT;
- Mount the standby database: SQL> ALTER DATABASE MOUNT STANDBY DATABASE;
- Open the database for read-only access: SQL> ALTER DATABASE OPEN READ ONLY;
How do I open a standby database in read write mode?
The following statement changes the open mode from mounted or open read-only to open read/write : ALTER DATABASE OPEN FORCE; To shutdown the instance, then start it in the mode you’d like, either by a SHUTDOWN IMMEDIATE then a STARTUP OPEN READ WRITE or a STARTUP FORCE OPEN READ WRITE .
How do I enable flashbacks in physical standby database?
- Shut down the database and start up the database in mount mode in SQL*Plus:
- Confirm that the database is in ARCHIVELOG mode, which is required for Flashback Database, and enable ARCHIVELOG mode if needed.
How can we open the standby database as read write for testing and once testing is done need to revert to previous position but without using snapshot command?
- SQL> ALTER SYSTEM SET DB_RECOVERY_FILE_DEST_SIZE=5G; …
- SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL; …
- SQL> select NAME,SCN,TIME from v$restore_point; …
- SQL> ALTER SYSTEM ARCHIVE LOG CURRENT; …
- SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_STATE_2=DEFER;
How can we open the standby database as read write for testing and once testing is done need to revert to previous position but without using snapshot command?
- SQL> ALTER SYSTEM SET DB_RECOVERY_FILE_DEST_SIZE=5G; …
- SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL; …
- SQL> select NAME,SCN,TIME from v$restore_point; …
- SQL> ALTER SYSTEM ARCHIVE LOG CURRENT; …
- SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_STATE_2=DEFER;
How do I open a standby database in read write mode?
The following statement changes the open mode from mounted or open read-only to open read/write : ALTER DATABASE OPEN FORCE; To shutdown the instance, then start it in the mode you’d like, either by a SHUTDOWN IMMEDIATE then a STARTUP OPEN READ WRITE or a STARTUP FORCE OPEN READ WRITE .
How do I open a standby database?
- Start the database: SQL> STARTUP NOMOUNT;
- Mount the standby database: SQL> ALTER DATABASE MOUNT STANDBY DATABASE;
- Start the managed recovery operation: SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE 2> DISCONNECT FROM SESSION;
How do I open a standby database when the primary database is lost?
If your primary database is not accessible or crashed for any issue, then we can use open the standby database for use. NOTE: If protection_mode is other than maximum performance, then alter it as below. SQL> RECOVER STANDBY DATABASE; Make sure all archives has been applied in this process.
How do I open a read only database?
Answer: You can make a read only user and make read only tablespaces but you can also make the entire database read-only with an alter command. ORACLE instance started. SQL> alter database open read only; Database altered.
How do I change my Oracle database from standby to primary?
- Issue the following statement on the old primary database: SQL> ALTER DATABASE CONVERT TO PHYSICAL STANDBY; …
- Shut down and restart the database: SQL> SHUTDOWN IMMEDIATE; SQL> STARTUP MOUNT;
How do I change from standby to primary?
SQL> alter database activate standby database; Database altered. The standby database has been activated and is now a primary database.
How do I turn off standby in Oracle?
To shut down a physical standby database, use the SQL*Plus SHUTDOWN command. If the database is performing managed recovery, you must cancel managed recovery operations before issuing the SHUTDOWN command. Control is not returned to the session that initiates a database shutdown until shutdown is complete.
How do I know if my database is standby or primary?
…
- First, thanks for the suggestions. …
- You can also goto $ORACLE_BASE/diag/rdbms/<dbsid>/<dbsid>/trace and grep the alert to see if it is in recovery. …
- Cool.
How do I upgrade a primary database and a physical standby to Oracle 12c?
- Environment.
- Disable DG Broker.
- Apply latest PSU on 11.2.0.4 on both primary and standby (click below for example)
- Install 12.2 database software on standby.
- Install 12.2 database software on primary.
- Apply latest Release Update on 12.2.0.1 on standby.
How do I open a standby database in read write mode?
The following statement changes the open mode from mounted or open read-only to open read/write : ALTER DATABASE OPEN FORCE; To shutdown the instance, then start it in the mode you’d like, either by a SHUTDOWN IMMEDIATE then a STARTUP OPEN READ WRITE or a STARTUP FORCE OPEN READ WRITE .
How do I open a standby database in read/write mode permanently?
The following statement changes the open mode from mounted or open read-only to open read/write : ALTER DATABASE OPEN FORCE; To shutdown the instance, then start it in the mode you’d like, either by a SHUTDOWN IMMEDIATE then a STARTUP OPEN READ WRITE or a STARTUP FORCE OPEN READ WRITE .
How do I open physical standby database in read only mode?
- Start the Oracle instance for the standby database without mounting it: SQL> STARTUP NOMOUNT;
- Mount the standby database: SQL> ALTER DATABASE MOUNT STANDBY DATABASE;
- Open the database for read-only access: SQL> ALTER DATABASE OPEN READ ONLY;
How can we open the standby database as read write for testing and once testing is done need to revert to previous position but without using snapshot command?
- SQL> ALTER SYSTEM SET DB_RECOVERY_FILE_DEST_SIZE=5G; …
- SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL; …
- SQL> select NAME,SCN,TIME from v$restore_point; …
- SQL> ALTER SYSTEM ARCHIVE LOG CURRENT; …
- SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_STATE_2=DEFER;
How do you open physical standby for read/write test and flashback 19c?
- Step 1 – In Standby database. A ) Set up a flash recovery area. …
- Step 2 – In Primary Database. …
- Step 3 – In Standby database. …
- Step 4 – In Standby database. …
- Step 5 – In standby database.
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