[ic] Set relations

[Barbara Picci <barbara.picci@sardi.it>]

Hi,
how can I set relations between two tables in Internal Interchange database?

e.g. I have a table with products with a field that contain producer 
ID and another table with the producer's data.
They must been in relation to write the producer data and all 
products of that producer on a page when searching for him.

Can I add a table?
And how can I make the relation?

Thanks