Add, change, and delete users, or groups containing users or other groups, grant or revoke database authorities, and define login policies.
Manage Users and Groups
Add, change, and delete users, or groups containing users and/or other groups, as a prerequisite to managing user authorities.
Manage Authorities
Grant database authorities to a user or group, and revoke database authorities from a user or group.
Manage Login Policies
A login policy is a named object in a database that consists of a set of rules that are applied when you create a database connection for a user. All new databases include a root login policy.