[Zope] Linking two tables

This question might be slightly off topic. But anywhere here it is: I have two tables in my MS Access database: 1. Containg a record for each employee 2. DVD database containing a record for each DVD What I would like to do with Zope, is to somehow link these two together, so that I can write on my intranet that Mr. X has DVD this and that. My problem is that I can offcause make a field in the first table (employee table), where I list the IDnumbers of the DVDs (seperated by commas), which the employee owns, but then a query returns these id's comma seperated and I don't how to handle this (in a <dtml-in> -loop). Regards, A n d e r s G a a r s d a l H o l s t