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RE: A present for Guy Fawkes night

From: Seaborne, Andy <andy.seaborne@hp.com>
Date: Fri, 5 Nov 2004 18:27:54 -0000
Message-ID: <8D5B24B83C6A2E4B9E7EE5FA82627DC94D30CF@sdcexcea01.emea.cpqcorp.net>
To: "Dan Connolly" <connolly@w3.org>
Cc: "RDF Data Access Working Group" <public-rdf-dawg@w3.org>

Form added:

http://sparql.org/query.html

	Thanks
	Andy

-------- Original Message --------
> From: Dan Connolly <>
> Date: 5 November 2004 14:28
> 
> On Fri, 2004-11-05 at 13:39 +0000, Seaborne, Andy wrote:
> > Simon and I were discussing interoperability testing after the
> > telecon. 
> > 
> > It is traditional on Bonfire Night (Guy Fawkes night) in the UK to
let
> > off fireworks to celebrate a failed attempt to blow up the houses of
> > Parliament.  Fireworks include SPARQLers.  So it is with some
> > trepidation, I have put up a SPARQL server based on some rather
> > unproven code.
> 
> Nifty...
> 
> > What works: (and I use "works" in the loosest possible sense)
> > + SELECT (RDF results only),
> 
> Ah... RDF descriptions of the result set, not the matching
> subset? Oh...
> 
> >  CONSTRUCT (maybe)
> 
> Is that how to get the matching subset? I guess I can try
> it and see... ugh... escaping queries by hand is a pain...
> do you offer a forms-based interface? I don't see one...
> but I can make one easily enough (attached).
> 
> Sure enough... I can get...
> 
> <http://example.org/book/book5>
>       <http://purl.org/dc/elements/1.1/title>
>               "Harry Potter and the Order of the Phoenix" .
> 
> with
> 
> CONSTRUCT *
> WHERE ( $x $p $v) AND $v =~ /Phoenix/
> 
> 
> This is kinda fun!
> 
> 
> > Protocol:
> > 
> > HTTP request must specify the language (lang=) and the query string
> > (query=) Languages are "SPARQL" or
> > "http://jena.hpl.hp.com/2003/07/query/SPARQL" 
> > 
> > In a browser, the results will come back text/plain for simple
> > display. You can ask for application/rdf+xml as well.
> 
> Now there's a front-side-of-one-page protocol spec if I've ever
> seen one!
> 
> 
> > The code is in
> > cvs.sourceforge.net:/cvsroot/joseki/Joseki3
> >   and
> > cvs.sourceforge.net:/cvsroot/jena2/BRQL (but the query engine is
> > called ARQ). 
> > 
> > 	Andy
> --
> Dan Connolly, W3C http://www.w3.org/People/Connolly/
> D3C2 887B 0F92 6005 C541  0875 0F91 96DE 6E52 C29E
Received on Friday, 5 November 2004 18:28:27 GMT

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