DBA Users (Database Administrators)
DBA users (
database user class: DBA) are database users. They are created by the SYSDBA.A DBA user is authorized to create
RESOURCE and STANDARD users. The DBA user can also define data and database procedures and grant other users all or some DBA user privileges for these database objects.A DBA user can group users with identical access rights into
user groups.DOMAIN User
The DOMAIN user is a special database user belonging to the DBA database user class. The DOMAIN user owns
database catalog system tables.Just like the SYSDBA user, the DOMAIN user is created when a
database instance is registered. The DOMAIN user is created by the system under the pre-defined name DOMAIN. The password is the same as that of the SYSDBA user that was created earlier.The DOMAIN user’s password can be changed at a later date.