Removing the Global Role Administrator from a Role

Remove the global role administrator from a role.

Prerequisites
Requires administrative privilege over the role.
Task
A minimum number of role or global role administrators (as defined by the MIN_ROLE_ADMINS database option) with a login password must exist for each role at all times. You can remove the global role administrator from a role as long as this minimum is still met for the role.
To remove the global role administrator from a role, execute:
REVOKE ROLE role_name 
FROM SYS_MANAGE_ROLES_ROLE
Related reference
REVOKE ROLE Statement