Re: TPF and DBMSes (was Re: Hydra and Shapes)

Like this?:
http://client.wikidataldf.com/#startFragment=http%3A%2F%2Fdata.wikidataldf.com%2Fwikidata-sitelinks&query=SELECT%20%3Fa%20%3Fi%20WHERE%20%7B%0A%20%20%20%20%3Fa%20%3Chttp%3A%2F%2Fschema.org%2Fabout%3E%20%3Fi.%0A%20%20%20%20%3Fa%20%3Chttp%3A%2F%2Fschema.org%2FinLanguage%3E%20%22ak%22.%0A%20%20%20%20%3Fa%20rdf%3Atype%20%3Chttp%3A%2F%2Fwww.wikidata.org%2Fontology%23Article%3E.%0A%7D

John


> On November 24, 2014 at 8:07 PM Kingsley Idehen <kidehen@openlinksw.com>
> wrote:
>
>
> On 11/24/14 1:32 PM, Ruben Verborgh wrote:
> >>> By definition, a “multiple statement triple pattern fragment” does not
> >>> exist.
> >>> http://www.hydra-cg.com/spec/latest/triple-pattern-fragments/#definition
> >> Assuming that having looked up the URI above, what I read implies the
> >> following isn't possible:
> >>
> >> ?s ?p ?o.
> >> ?o ?p1 ?o2 .
> > It is purposely not possible to ask such a question directly to a triple
> > pattern fragments server.
>
> Okay.
>
> > It is possible to ask such a question to a triple pattern fragments client.
>
> Yes, I can see:
>
> SELECT ?a ?b ?i WHERE {
> ?a <http://schema.org/about> ?i.
> ?a <http://schema.org/inLanguage> "ak".
> ?a rdf:type <http://www.wikidata.org/ontology#Article>.
> ?b <http://schema.org/about> ?i.
> ?b <http://schema.org/inLanguage> "ab".
> ?b rdf:type <http://www.wikidata.org/ontology#Article>.
> FILTER(regex(?a, "http://ak.wikipedia.org/wiki/"))
> FILTER(regex(?b, "http://ab.wikipedia.org/wiki/"))
> }
>
> via: http://client.wikidataldf.com .
>
>
> What would make things a little clearer, in regards to SPARQL, is the
> support for SPARQL Protocol URLs that identify query solutions (results).
>
> --
> Regards,
>
> Kingsley Idehen
> Founder & CEO
> OpenLink Software
> Company Web: http://www.openlinksw.com
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>
>