Re: domain questionnaire
From: David Cressey <david_at_dcressey.com>
Date: Sat, 24 Feb 2001 13:34:19 GMT
Message-ID: <vLOl6.35886$2X4.120865_at_petpeeve.ziplink.net>
Date: Sat, 24 Feb 2001 13:34:19 GMT
Message-ID: <vLOl6.35886$2X4.120865_at_petpeeve.ziplink.net>
"Jan Hidders" wrote
> I don't really agree. For introducing time stamps you don't need to
> change the relational model. You just need to reconsider very carefully
> what exactly the facts are that every record represents.
The morning star can be either Venus, Mercury, or, I think, Mars or Jupiter, depending on the angles. What's the identity of the morning star?
When you said "morning star", etc. I thought you were referring to this fact.
--
Regards,
David Cressey
www.dcressey.com
Received on Sat Feb 24 2001 - 14:34:19 CET