Re: Why is "group by" obligatory in SQL?
From: Vadim Tropashko <vadimtro_at_gmail.com>
Date: Fri, 24 Jul 2009 14:28:08 -0700 (PDT)
Message-ID: <8eca083e-8061-4e27-a60e-a3ffb7227d44_at_y10g2000prg.googlegroups.com>
Date: Fri, 24 Jul 2009 14:28:08 -0700 (PDT)
Message-ID: <8eca083e-8061-4e27-a60e-a3ffb7227d44_at_y10g2000prg.googlegroups.com>
On Jul 24, 9:14 am, paul c <toledobythe..._at_oohay.ac> wrote:
> - where is the constraint theory? will normalization turn out to be
> just a small part of this?
http://vadimtropashko.wordpress.com/lattice-perspective-into-funcional-dependencies/
BTW, "group by" is automatically generated in upcoming version 2.0 of SQLDeveloper Received on Fri Jul 24 2009 - 23:28:08 CEST