Common questions

How do I get my database out of restricted mode?

How do I get my database out of restricted mode?

Disabling restricted mode means that we stop limiting user’s access to the database, users can freely connect to the database as they want. To lift the limitation by disabling it. SQL> alter system disable restricted session; Then we check the LOGINS status.

What is database restricted mode?

Opening a database in restricted mode allows database access only to users with both the CREATE SESSION and RESTRICTED SESSION system privilege; only database administrators should have the RESTRICTED SESSION system privilege.

What is restricted mode in Oracle database?

You can use the STARTUP RESTRICT command to control access to an Oracle ASM instance while you perform maintenance. The RESTRICTED mode enables you to perform maintenance tasks on a disk group in the Oracle ASM instance without interference from clients. …

How can I tell if my database is in restricted mode?

SQL> Select logins from v$instance; If the database is restricted mode then it will return RESTRICTED otherwise it will return ALLOWED.

How do I grant restricted session privilege?

If you need to grant a user access to database when it’s in restricted mode, you can run the following SQL. SQL> GRANT RESTRICTED SESSION TO scott; Grant succeeded. To change from restricted mode to unrestricted/active mode, which can switch without restarting the database.

How do I open a standby database in read only mode?

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;

How do I change restricted mode in Oracle?

Placing Open Database In Restricted Mode If you do not want to shutdown the database, there is an ALTER SYSTEM command you can use to place the database in restricted mode. SQL> alter system enable restricted session; The downside to this method is that users already connected to the database will not get disconnected.

How do I check database mode?

Checking ARCHIVELOG mode status

  1. 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.
  2. To check the ARCHIVELOG mode status, enter the following SQL command: SQL> archive log list;

Which command can open database for restricted access DBA?

ALTER SYSTEM command
Placing Open Database In Restricted Mode If you do not want to shutdown the database, there is an ALTER SYSTEM command you can use to place the database in restricted mode. SQL> alter system enable restricted session; The downside to this method is that users already connected to the database will not get disconnected.

How do I start and stop a standby database?

8.1 Starting Up and Shutting Down a Physical Standby Database

  1. Start the database: SQL> STARTUP NOMOUNT;
  2. Mount the standby database: SQL> ALTER DATABASE MOUNT STANDBY DATABASE;
  3. Start the managed recovery operation: SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE 2> DISCONNECT FROM SESSION;

What does it mean to enable Restricted Session in quiesce?

Thanks. quiesce restricted lets you safely update code and ddl in the database without shutting down and kicking everyone out. ‘alter system enable restricted session’ does not “kick out” user automatically.

How does a restricted session work in DBA?

It allows all current transactions to complete, and then freezes the user’s session. To use ‘restrict session’ to do the same job, DBA might need to have a procedure that is able to keep monitoring the status of the existing transactions and kill the session as soon as the transaction gets completed.

What does alter system enable Restricted Session do?

‘alter system enable restricted session’ does not “kick out” user automatically. It just blocks new user who does not have the ‘restrict session’ privilege to login, similar to ‘ALTER SYSTEM QUIESCE RESTRICTED’, which blocks new non-dba users.

How to use restricted session to do the same job?

To use ‘restrict session’ to do the same job, DBA might need to have a procedure that is able to keep monitoring the status of the existing transactions and kill the session as soon as the transaction gets completed. I said “you would KICK OUT”, not that “it kicks out”. you just said the same thing I did.

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Ruth Doyle