postgresql7.3 select task_name, task_item_id, number_of_members from evaluation_tasks et where task_id=:task_id select count(*) from cr_items where item_id = :grades_sheet_item_id select count(*) from evaluation_task_groups etg where group_id = :party_id and task_item_id = :task_item_id select coun(*) from cc_users where person_id = :party_id select count(*) from persons p, registered_users ru, dotlrn_member_rels_approved app where app.community_id = :community_id and app.user_id = ru.user_id and app.user_id = p.person_id and app.user_id = :party_id and app.role = 'student' select item_id from evaluation_student_evalsi where evaluation_id = :evaluation_id