ORA-01102: cannot mount database in EXCLUSIVE mode

ORA-01102: cannot mount database in EXCLUSIVE mode

Hi friends, recently during starting my database I end up with following error: ORA-01102: cannot mount database in EXCLUSIVE mode.

ORA-01102 cannot mount database in EXCLUSIVE mode

Cause of the above error is: Other instance has the database mounted exclusive or shared.

Solution:

Shutdown the primary database:

shut immediate;

ORA-01102 cannot mount database in EXCLUSIVE mode

Find out all the processes belonging to the database still running, and kill the processes:

ORA-01102 exclusive mode

Now start the database:ORA-01102 cannot mount database in EXCLUSIVE mode 2