> Hello Ivan. In your opinion, does a SWEEP make any difference in
> making it more difficult or impossible to recover committed deleted or
> updated records? I have a very paranoid client. Thanks, Hugo

If you need 100% assurance that deleted records can't be recovered,
I see only 2 ways
- backup / restore (or datapump), or
- write a tool that will read database file page by page and overwrites
all unused space (it would require that all users are disconnected)

Ivan
http://www.volny.cz/iprenosil/interbase/