Hi frupaul,
The easiest is to use the Association node in SAS Enterprise Miner. However, if you want to understand the technical side of Association node, take a look at this document. It describes how how PROC DMDB, PROC ASSOC, and PROC RULEGEN work together.
http://support.sas.com/documentation/onlinedoc/miner/em43/rulegen.pdf
Example of SAS Enterprise Miner Association node
If you have specific questions about your data, open a Technical Support track here and we'll be happy to help you further!
Hope this helps!
Jess Mayo
SAS Technical Support