Re: How to normalize this?
From: <compdb_at_hotmail.com>
Date: Mon, 6 May 2013 14:06:18 -0700 (PDT)
Message-ID: <3b9ceadd-2074-4cfb-a8df-fc89e798804f_at_googlegroups.com>
Date: Mon, 6 May 2013 14:06:18 -0700 (PDT)
Message-ID: <3b9ceadd-2074-4cfb-a8df-fc89e798804f_at_googlegroups.com>
On Monday, May 6, 2013 12:48:10 PM UTC-7, Erwin wrote:
> The key, the whole key, and nothing but the key. "whole key"=2, "nothing but the key"=3.
one or more of key + whole key + nothing but the key = 2
key + whole key = 3
key + whole key + nothing but the key = bcnf
as pointed out by Nicola, R1 is in 3nf but not bcnf.
philip Received on Mon May 06 2013 - 23:06:18 CEST