Stephan Szabo and Josh Berkus, Thanks for your input. The question at hand seemed to provide an appealing argument for providing inheritance support for referencial constraints, but if its support is as rare as it seems to be then that could produce problems if I want the ability to be able to manage the data with tools on other platforms. I guess I will have to give potential alternatives more consideration.
Thanks again, Stuart ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly