Hi Jonathan, >I'm a bit late in getting this posted, because of various, and >mysterious, issues with my wireless networking connection: > >http://www.oreillynet.com/pub/wlg/6640 Do I miss anything or the first two queries are identical? you forget to substitute 'NOT IN' with 'EXISTS' in the second one. Your reports from Hotsos are very useful. Regards. Mario from Rome, Europe __________________________________________________________________ Tiscali Adsl 3 Mega Flat con 3 MESI GRATIS! Con Tiscali Adsl 3 Mega Flat navighi con la supervelocita' a soli 29.95 euro al mese, senza limiti di tempo. E se attivi entro il 15 Marzo, 3 MESI sono GRATIS! Scopri come su http://abbonati.tiscali.it/adsl/ -- //www.freelists.org/webpage/oracle-l