Hi

The biggest ive seen to date hosted in oracle is a 450Gb beast. The size is one thing, but really high throughput db's and massive numbers of users is another. Ive seen a case sometime back for a smart card system that needed to process 10000 requests per sec during peak times from realtime data. Really comes down to system design and architecture as the key to success and overall scalability and extensability of your apps, no matter the "modern" underlying technoligies used.

I will probably rethink what I just said later today

Cheers

Ck

Chris Kempster

http://www.chriskempster.com

Author of "SQL Server 2k for the Oracle DBA"