Unlock User Account In Oracle. Check the status of the user account that you need to unlock. Change default password life time to unlimited as follows.

Log in as the oracle database software owner user. Unlock appreas as an option, only if you have configured it on the resources context layout structure. Set the oracle_home and oracle_sid environment variables.

Unlock Oracle User Account. Or increase the password life time parameter as follows. Do one of the following:

This will prompt you to specify a new password for the admin user. Before you use a locked account, you must unlock it and reset its password. Of course change the values of the parameters username and new password to fit your needs.