Hello zope, i posted this to zope-db, but nobody replied... there is this SET type in mysql... the problem is it's bit based, and can contain up to 32 elements... what if i have lot more stuff? i have 2 tables, the first one is for the product (i'm building an e-commerce site) and the other has options, that can be selected for the product. i thought of keeping the "option1,option2,option3" structure, but make it TEXT instead of SET, and doing the whole searching/adding/deleting logic from code and not mysql. but it seems a bit complicated for first. is there a better workaround? whats the practice for this? i have ran into this problem several times, and i am sure there is a good working practice for this under zope;D thanks a lot, k. -- don't believe everything you think