postgresql7.1
select to_char(start_date, 'HH24:MI') as start_time,
to_char(start_date, 'MM/DD/YYYY') as start_date,
to_char(end_date, 'HH24:MI') as end_time,
coalesce(a. name, e.name) as name,
coalesce(e.description, a.description) as description
from acs_activities a,
acs_events e,
timespans s,
time_intervals t
where e.timespan_id = s.timespan_id
and s.interval_id = t.interval_id
and e.activity_id = a.activity_id
and e.event_id = :cal_item_id
select calendar_id, calendar_name
from calendars
where acs_permission__permission_p(calendar_id, :user_id, 'calendar_write') = 't'
and private_p = 'f';