Managing security types and permissions
There are several predefined security types. For each security type, there is a predefined set of permissions. You can grant or revoke permissions associated with a role.
When a role is assigned to a user, that user inherits all the permissions defined for the role. Permissions are role-based and cannot be customized for a specific user. That is, all permissions defined for a role apply to all users assigned the role.
The predefined roles are assigned a set of default permissions. For user-created roles, permissions are assigned to the role from the available security types. You can select permissions from multiple security types. For information about security types and permissions, see Security types.
You can revoke and return permissions to a role. Just remember the permission will apply to all users assigned the role.