Steve Harp wrote:

> Is there a way to lock a database to force a backup will fail?
>
> Why would anyone want to do this you ask? Well, my boss is trying to
> test an application and wants to see the response when a backup fails.

You could create a backup file (before starting) and make it read-only.

Or remove read permission on database file.

--
Milan Babuskov
http://swoes.blogspot.com/
http://www.flamerobin.org