Oracle database default setup Users and their Passwords

When you install Oracle database engine using default installation configuration, few superusers are created.

Two such users are:

• SYS
• SYSTEM

Users SYS and SYSTEM are:
– created automatically during database creation,
– granted the DBA role.

• User SYS
– Owner of the database data dictionary
– Default password: change_on_install

• User SYSTEM
– Owner of additional internal tables and views used by Oracle tools
– Default password: manager

Hope you won't again be depressed if you forget to check or change default passwords of these users while setting Oracle database engine up!

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