'list of users interbase' on Google turned up this borland doc. It's
a C code demo of how to do it.

http://community.borland.com/article/0,1410,25524,00.html

Regards,
Andrew Ferguson

--- In ib-support@y..., "Diego Gomez" <diego.gomez@p...> wrote:
> how can i know if an user uses only one database, and doesnt make
another
> database with the same username, password and server name, and uses
both of
> them in the same application?
>
> I would like to know how to recognize a database (instance) as the
one an
> only the user can make, the only one than my application recognizes.
>
> By the way , my application is in Delphi 4, and im using interbase
5 for the
> Database.
>
> Can you help me?
>
> Thanks in advance