Re: Impossible Database Design?
Date: 17 May 2006 04:42:42 -0700
Message-ID: <1147866162.189040.69770_at_i39g2000cwa.googlegroups.com>
>> Are you referring to 'Databases, Types and the Relational Model' by C.
No, the book Bob refers to is from Morgan-Kaufmann and has gone out of
print. It is not really very useful for a working programmer, since
Date invented a language that not implemented for the book. It also
uses a "Chronons" (discrete points of time) model for temporal data,
which is rejected by virtually all of the temporal database academics
because it fails to model time as a continuum.
J. Date, Hugh Darwen? <<
A better and cheaper cholice would be to download the PDF book by Rick Snodgrass at the University of Arizona website. Rick has been doing temporal RDBMS work for over 20+ years and has actual SQL code in the major dialects in his book, as well as accepted theoretical basis. Received on Wed May 17 2006 - 13:42:42 CEST