oracle8.1.6 select to_char(start_date, 'HH24') as start_hour, to_char(start_date, 'HH24:MI') as pretty_start_date, to_char(end_date, 'HH24:MI') as pretty_end_date, nvl(e.name, a.name) as name, e.event_id as item_id 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 start_date between to_date(:current_date,:date_format) and to_date(:current_date,:date_format) + (24 - 1/3600)/24 and e.event_id in ( select cal_item_id from cal_items where on_which_calendar = :calendar_id ) select to_char(start_date, 'HH24') as start_hour, to_char(start_date, 'HH24:MI') as pretty_start_date, to_char(end_date, 'HH24:MI') as pretty_end_date, nvl(e.name, a.name) as name, e.event_id as item_id 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 start_date between to_date(:current_date,:date_format) and to_date(:current_date,:date_format) + (24 - 1/3600)/24 and e.event_id in ( select cal_item_id from cal_items where on_which_calendar = :calendar_id )