Re: What does this mean?
From: Jeff Zucker <jeff_at_vpservices.com>
Date: Thu, 01 Aug 2002 01:03:23 -0700
Message-ID: <3D48EB4B.1010607_at_vpservices.com>
>
> It's a variation on BNF - Backus-Naur Form
Date: Thu, 01 Aug 2002 01:03:23 -0700
Message-ID: <3D48EB4B.1010607_at_vpservices.com>
Jonathan Leffler wrote:
>> In Date's "manifesto" and "introduction to databases systems" he uses >> the following format >> >> <foo> ::= >> <bar> >> >> Could someone translate that into english for me? >> >> I.E. what the heck does ::= mean?
>
> It's a variation on BNF - Backus-Naur Form
> > [good explanation snipped] >
> See also the web site http://www.cl.cam.ac.uk/~mgk25/iso-ebnf.html which
> discusses the ISO 14977:1996 Extended BNF, which I've never actually
> seen used.
>
Or, for even more fun, see the clickable, interactive BNF of the SQL92 draft at:
http://cui.unige.ch/db-research/Enseignement/analyseinfo/SQL7/BNFindex.html
-- JeffReceived on Thu Aug 01 2002 - 10:03:23 CEST