Helen Borrie wrote:

> Nothing.
>

And then later she wrote

> In general, it is a very uncool idea to have user apps that perform DDL
> when you have active DML going on.

Well, you're right. The program that I am working on is a utility for testing
sequences of scripts before sending them to the user to upgrade their database.
It's supposed to happen after all the factory operators have logged off for the
day, and to be followed by installing by a new version of the software. So, this
update process should be the only one interacting with the database.

> heLen

Hmmmm.. camelcaps.

Thanks for your replies. It's helped to clear up some things.

Regards,

Mark