Hi, Brendan, Brendan Curran wrote: >> What prevents you from using an aggregate function? > > I guess I could actually obtain the results in an aggregate function and > use those to maintain a summary table. There is a web view that requires > 'as accurate as possible' numbers to be queried per group (all 40 groups > are displayed on the same page) and so constant aggregates over the > entire table would be a nightmare. That sounds just like a case for GROUP BY and a materialized view. Markus -- Markus Schaber | Logical Tracking&Tracing International AG Dipl. Inf. | Software Development GIS Fight against software patents in Europe! www.ffii.org www.nosoftwarepatents.org