Here is a query I write in SQL*Plus that gives me exactly what I need in a report I am creating:
select l.messaging_id,l.name,l2.name,p.pager_id,
o.START_DATE, o.END_DATE, o.REMARK,
from listing l, listing l2, on_call_assignment o,
pager_assignment p
where l.MESSAGING_ID =...