postgresql7.1 SELECT r.item_id as assessment_id, s.session_id, s.percent_score, to_char(s.completed_datetime, :format) as completed_datetime, p.first_names || ' ' || p.last_name AS subject_name, r.title AS assessment_name, s.subject_id, to_char(a.start_time, 'YYYY-MM-DD HH24:MI:SS') as start_time, to_char(a.end_time, 'YYYY-MM-DD HH24:MI:SS') as end_time, to_char(now(), 'YYYY-MM-DD HH24:MI:SS') as cur_time FROM as_sessions s, cr_revisions r, persons p, as_assessments a WHERE s.assessment_id = r.revision_id AND s.subject_id = p.person_id AND s.subject_id = :subject_id AND r.item_id = :assessment_id and a.assessment_id = :assessment_rev_id ORDER BY s.session_id desc SELECT r.item_id as assessment_id, s.session_id, s.percent_score, to_char(s.completed_datetime, :format) as completed_datetime, p.first_names || ' ' || p.last_name AS subject_name, r.title AS assessment_name, s.subject_id, to_char(a.start_time, 'YYYY-MM-DD HH24:MI:SS') as start_time, to_char(a.end_time, 'YYYY-MM-DD HH24:MI:SS') as end_time, to_char(now(), 'YYYY-MM-DD HH24:MI:SS') as cur_time FROM as_sessions s, cr_revisions r, persons p, as_assessments a WHERE s.assessment_id = r.revision_id AND s.subject_id = p.person_id AND r.item_id = :assessment_id and a.assessment_id = :assessment_rev_id ORDER BY s.session_id desc