Re: EAV (Re: Object-relational impedence)
From: David Cressey <cressey73_at_verizon.net>
Date: Sat, 29 Mar 2008 13:14:49 GMT
Message-ID: <dhrHj.492$at6.275@trndny01>
Date: Sat, 29 Mar 2008 13:14:49 GMT
Message-ID: <dhrHj.492$at6.275@trndny01>
"Dmitry A. Kazakov" <mailbox_at_dmitry-kazakov.de> wrote in message news:e5lufueeu155.t1s8vlmxjhpt.dlg_at_40tude.net...
> It is interesting to see people reinventing the wheel (class). The set of
> "all possible widgets having attributes T, U, V" is a class.
The pattern of "generalization-specialization" predates both the relational data model and the object oriented paradigm. Neither one of them really derived that pattern from the other. There is undoubtedly a common intellectual ancestor, but you might have to go back centuries to find it. Received on Sat Mar 29 2008 - 08:14:49 CDT