Time for action – switchover with a logical standby database using SQL*Plus

Now we will see a step-by-step approach to perform a switchover between the primary and the logical standby database:

  1. Check the switchover status of the primary database. Ensure that the status is either TO STANDBY or SESSIONS ACTIVE; if so, you are safe to perform a switchover as shown in the following code:
    SQL> select switchover_status from v$database;


    In case of RESOLVABLE GAP, wait until SQL was applied on the logical standby database; for other statuses, troubleshoot and fix the synchronization for the switchover process to be successful.

  2. Prepare the primary database for switchover. Execute the following command from ...

Get Oracle Data Guard 11gR2 Administration Beginner's Guide now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.