- From: Quentin Reul <Quentin.H.Reul@gmail.com>
- Date: Tue, 13 Aug 2013 12:26:12 -0500
- To: Axel Polleres <axel@polleres.net>
- Cc: semantic-web@w3.org, public-rdf-wg <public-rdf-wg@w3.org>, public-sparql-dev@w3.org
- Message-ID: <CANk+SXmeo10ixUQ1vU9yhwL1HouxsBdWDnL_ncbVi4xJ7fwMHg@mail.gmail.com>
Hi all, I got some help for the developers at Franz Inc. and the following query retrieves information as expected: select distinct ?g { graph ?g { ?s ?p ?o } } Thanks to those that have helped. Quentin On 13 August 2013 10:55, Quentin Reul <Quentin.H.Reul@gmail.com> wrote: > Hi Alex, > > Thanks for your feedback. Unfortunately, it doesn't seem to return > anything in AllegroGraph, but I don't know if it is an implementation > issue. From looking at the specification, it seems that the goal it to > retrieve similar triples from distinct graphs as opposed to retrieve the > graphs per se. > > Cheers, > > Quentin > > > On 13 August 2013 10:48, Axel Polleres <axel@polleres.net> wrote: > >> Hi Quentin, >> >> how about just >> >> SELECT ?G WHERE { GRAPH ?G {} } >> >> (no need to dump all triples, if the only concern is which ?G exist) >> >> BTW, public-sparql-dev@w3.org may be the list you wanted to use. >> >> best, >> Axel >> -- >> Dr. Axel Polleres >> url: http://www.polleres.net/ twitter: AxelPolleres >> >> >> >> On 13 Aug 2013, at 17:13, Quentin Reul <Quentin.H.Reul@gmail.com> wrote: >> >> > Hi all, >> > >> > I have been looking at the SPARQL 1.1 specification [1] and I can't >> find a way to retrieve the list of graphs found into a repository. I have >> managed to extract quads from the repository (?g ?s ?p ?o) using >> > SELECT ?g ?s ?p ?o >> > WHERE { >> > GRAPH ?g {?s ?o ?p} >> > } >> > >> > Is there a better way to extract the list of graphs? If not, I think >> that SPARQL should offer a mechanism to extract a list of graphs in a >> similar way that SQL allows people to. >> > >> > I look forward to hearing from you. >> > >> > Cheers, >> > >> > Quentin >> > >> > [1] http://www.w3.org/TR/sparql11-query/ >> >> >
Received on Tuesday, 13 August 2013 17:26:40 UTC