Uwe Grauer wrote: > What is a table without a primary key good for? > Can you come up with a practical use for this?
An intermediary table for getting M:M joins that doesn't have any other meaningful information other than the two foreign keys really doesn't require a primary key. IOW: customers --------- pk name ... categories ---------- pk name ... cust_cat -------- cust_fk cat_fk I've gotten in the habit of making a cust_cat.pk anyway, even though it isn't ever used anywhere. I could also do (cust_fk, cat_fk) as the PK but I've just never taken to that approach. -- pkm ~ http://paulmcnett.com _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: http://leafe.com/mailman/listinfo/dabo-dev Searchable Archives: http://leafe.com/archives/search/dabo-dev This message: http://leafe.com/archives/byMID/dabo-dev/[EMAIL PROTECTED]
