Dear Karl Foreign key is a good option (provided you use InnoDB database) to automate the deletion/updation of cart details when you remove cart. Besides 1:1 cardinality is good or bad can only be decided on the semantics of your tables. As a an aside, if it is 1:1 cardinality, then you can probably merge the two tables ============ regds amit "The difference between fiction and reality? Fiction has to make sense." On Mon, Dec 26, 2011 at 12:38 PM, Karl DeSaulniers <karl@xxxxxxxxxxxxxxx>wrote: > Hello all, > I have two database tables. Cart and a cartdetails. > I want the information for the cartdetails to be based on/autofilled info > from cart. > I want the ability to delete from cart and cartdetails to automatically > clear as well. > Would a foreign key be best suited for this? What kind of cardnaility > would I use 1:1 ? > Hope I make sense. > > Hope everyone had a great holidays! > > Best, > > Karl DeSaulniers > Design Drumm > http://designdrumm.com > >
