I have two questions. The first is about functions.

1. Functions
Wich is the best place for a function a form or a module(bas)?.
I'm interested in memory and speed of my functions.
Which are the main differences between both places?.

2. Crystal Report
I'm using Crystal Report 7.0 and I want to know if it's
possible to make a field in my report that contains a query.
I want to make a "select sum" in one table and I want a field
to show the result of that query. Is it possible?.
I'm trying using a "sql expresion field" but I don't have success. Any advive???.

Thank you very much

Nauj