Query to fetch Responsibilities attached to a User

The below query will fetch the responsibilities assigned to a particular user.
SELECT
    fu.user_id,
    fu.user_name,
    fr.responsibility_name,
    fr.description,
    fa.application_name
FROM fnd_user fu,
     fnd_user_resp_groups g,
     fnd_application_tl fa,
     fnd_responsibility_tl fr
WHERE
     g.user_id(+) = fu.user_id
     AND g.responsibility_application_id = fa.application_id
     AND fa.application_id = fr.application_id
     AND g.responsibility_id = fr.responsibility_id
     AND fu.user_name  =UPPER('User_Name');