ORACLE How to change oracle user's password

The Oracle database allows the users to change their passwords as follows:

SQL> ALTER USER me IDENTIFIED BY my_new_password;

or, alternatively, to use the PASSWORD command, which prompts for the old and new passwords.

SQL> password;

Of course, if the user has forgotten their old password, the DBA can do the necessary:

SQL> ALTER USER forgetful_user IDENTIFIED BY a_new_password;

Enjoy.