- Privileges
- A user privilege is a right to execute a particular type of SQL statement, or a right to access another user's object, execute a PL/SQL package, and so on. The types of privileges are defined by Oracle.
- Roles
- Roles are created by users (usually administrators) to group together privileges or other roles. They are a means of facilitating the granting of multiple privileges or roles to users.
- Profiles
- Profiles define resource limits imposed upon a user account. The "default" profile sets all resource limits to unlimited.