Guideline for Handling the Default Administrative User Passwords

You can use the same or different passwords for the SYS, SYSTEM, SYSMAN, and DBSNMP administrative accounts. Oracle recommends that you use different passwords for each. In any Oracle Database environment (production or test), assign strong, secure, and distinct passwords to these administrative accounts. If you use Database Configuration Assistant to create a new database, then it requires you to create passwords for the SYS and SYSTEM accounts.

Do not use default passwords for any administrative accounts, including SYSMAN and DBSNMP. Oracle Database 11g Release 2 (11.2) and later does not install these accounts with default passwords, but if you have upgraded from an earlier release of Oracle Database, you may still have accounts that use default passwords. You should find and change these accounts by using the procedures in "Finding and Changing Default Passwords".

At the end of database creation, Database Configuration Assistant displays a page that requires you to enter and confirm new passwords for the SYS and SYSTEM user accounts.

After installation, you can use Database Control to change the administrative user passwords. See "Finding and Changing Default Passwords" for more information on changing a password.