Query to get list of all active workflow users and their roles

Query to get list of all active workflow users and their roles 

select  wu.name user_name,
        wr.name role_name
from    wf_users wu,
        wf_user_roles wur,
        wf_roles wr
where   wu.name = wur.user_name
and     wur.role_name = wr.name
and     wu.status = 'ACTIVE'
and     wr.status = 'ACTIVE'
and     wr.orig_system = 'WF_LOCAL_ROLES'
order by wu.name,
        wr.name