Hi Martin,

> But it isn't possible to create your own functions in interbase and
> use them in select queries?

Yes, you can create UDFs (User Defined Functions) in a programming
language, save them to a DLL and declare the functions you want to use
in your database. You can then call them just like a built-in function
(the way you called your SP in your first posting on this subject).

The Developer's Guide describes how to do this. If you don't have the
documentation, go to:

http://www.ibphoenix.com/a432.htm#DOCS

The IBPhoenix website is a great place to find information (and links
to it) anyway. I revisit it often.


Groeten van Paul