Hi Adam, many thanks for your reply

>I am not willing to make a blanket statement because I believe there
>are slight differences in behaviour between FB 1.5 and FB 2 when it

Sory, I'm using FB 1.5 (in production env.)

> Having said that, you may have trouble with 'object in use' style
> errors and end up with some of your DDL failing.

Only if we try to create foreing keys... In those cases we aways have to
take everyone off. But this is the only case so far. We always perform DDL
changes with database active (as far as not droping anything, of course)


Regards,
Anderson