[Mulgara-general] Query from restricted graphs

[Alexandre Passant]

Hi,

On 8/23/06, Ben Hysell <BenH at viewpointusa.com> wrote:
> Alex,
>
> The try this:
>
> select $g from <rmi://192.168.0.1/server1#sampledata> where $g
> <dc:title> 'test graph';
>

Actually, I already made this kind of query work.
What I'd like to do is something like

SELECT ?s ?p ?o
WHERE {
   ?g dc:title 'test graph'
   GRAPH ?g { ?s ?p ?o }
}

i.e. not retrieve the graph name, but the statements from some graphs
(in a single query).
Is there a way to do it (as what I've tried before) ?

Thanks,

Alex.


> If you navigate to http://192.168.0.1:8080 on your test machine the help
> pages for Mulgara will be visible...try 'iTQL Commands' on the left hand
> side of the page for structuring queries.
>
> -ben
>
> -----Original Message-----
> From: mulgara-general-bounces at mulgara.org
> [mailto:mulgara-general-bounces at mulgara.org] On Behalf Of Alexandre
> Passant
> Sent: Wednesday, August 23, 2006 5:46 AM
> To: mulgara-general at mulgara.org
> Subject: [Mulgara-general] Query from restricted graphs
>
> Hi all,
>
> I'm currently trying mulgura (never used kowari before), and got a
> question regarding 'from' queries.
>
> I'd like to retrieve information from a set of statements constraint
> with their properties.
>
> I first add all needed statements:
>
> create <rmi://192.168.0.1/server1#sampledata>;
> load <http://apassant.net/blog/sioc.php?type=post&id=104>
> into<rmi://192.168.0.1/server1#sampledata>;
> insert <http://apassant.net/blog/sioc.php?type=post&id=104> <dc:title>
> 'test graph' into <rmi://192.168.0.1/server1#sampledata>;
>
> I'm looking for something like
>
> select $s $p $o from $g where $s $p $o and $g <dc:title> 'test graph';
> (leads to Query Error: [1,22] expecting: '(', resource )
>
> Is there a way to do such queries ?
>
> Finally, is there any difference between from and in ?
>
> Thanks for your help,
>
> Alex.
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