Re: Examples of SQL anomalies?
Date: Mon, 30 Jun 2008 23:36:33 -0700 (PDT)
On Jun 30, 7:48 pm, Bob Badour <bbad..._at_pei.sympatico.ca> wrote:
> The rules for aggregation don't even have all that much to do with FOL.
Ah, I see Bob has preceded me with this point.
> I remember the time Joe tried to argue that an aggregate over zero
> elements is undefined and cited Graham, Knuth et al. In fact, he cited
> the page before the one that stated point blank that an aggregate over
> zero elements is defined as the identity element for the base operation.
Marshall Received on Tue Jul 01 2008 - 08:36:33 CEST