Re: Nulls, integrity, the closed world assumption and events
From: Keith H Duggar <duggar_at_alum.mit.edu>
Date: 25 Jan 2007 18:10:02 -0800
Message-ID: <1169777402.263354.113270_at_q2g2000cwa.googlegroups.com>
Date: 25 Jan 2007 18:10:02 -0800
Message-ID: <1169777402.263354.113270_at_q2g2000cwa.googlegroups.com>
Neo wrote:
> dbd's tree view of pizza:
> pizza
> id
> 12345
> crust
> chicago
> cheese
> mozzarella
> provolone
> topping
> peppers
> mushrooms
> pepperoni
>
> dbd query:
> (& (get pizza instance *)
> (get * topping (!= (get topping instance *)
> peppers)))
Neo, I'm still waiting for you to provide the the dbd query to find all cheeses occurring with Pepperoni in at least one pizza. Are you off upgrading dbd to support this or what?
Keith -- Fraud 6 Received on Fri Jan 26 2007 - 03:10:02 CET