oracle8.1.6 select d.download_ip, nvl(min(d.download_hostname),'unavailable') as download_hostname, count(*) as num_downloads from download_downloads_repository d, cc_users u where d.repository_id = :repository_id and d.user_id = u.user_id [ad_dimensional_sql $dimensional where] group by d.download_ip order by 2 d.download_date + 1 > SYSDATE d.download_date + 7 > SYSDATE d.download_date + 30 > SYSDATE