Ok I know this is a stupid question but our one and only DBA get into a mess with our manager and rage quit today.
As a small company, I (IT support guy who knows nothing about DB) was told to change "password" to protect the database from sabotage.
We have this remote PC as a server with Allround PL/SQL developer on it and not much software else.
The question is : I just changed the login password of the server, is our database now safe from unwanted access? Should I change the password of the database user as well? (I googled how to do it, but it seems to involve some command line operation which I rather not perform is it is unneccesary)