A CUBRID database user can have members with the same authorization. If authorization A is granted to a user, the same authorization is also granted to all members belonging to the user. A database user and its members are called a "group."; a use who has no members is called a "user."
CUBRID provides DBA and PUBLIC users by default.
- DBA can access every object in the database, that is, it has authorization at the highest level. Only DBA has sufficient authorization to add, alter and delete the database users.
- All users including DBA are members of PUBLIC. Therefore, all database users have the authorization granted to PUBLIC. For example, if authorization B is added to PUBLIC group, all database members will automatically have the B authorization.