New user also can be added in many ways. (I will blog about this later)
Tips: Typically, these users hold standard data dictionary information for the database. So experts suggest to change the passwords of thesedefault users as soon as possible. Then How? Follow me.
1. Open SQLPLUSW.
2. Connect to the database using system/manager.
SQL> alter user system identified by
SQL> alter user sys identified by
This way you are safe. You can also add new user to the database. I have made up mind to talk about creating new user in Oracle database in my next post.
You may also like to read on implementation of object relational database features like inheritance, collection array, nested table etc. in Oracle .