hi, with jena i use PREFIX fn:<http://www.w3.org/2005/xpath-functions#> ... fn:contains(srt(?z), 'abc')
I dont remember why virtuoso get error with fn, so u need to use bif:contains(), no external ns needed ex: PREFIX property: <http://dbpedia.org/property/> SELECT ?y ?z WHERE { <http://dbpedia.org/resource/Land_Rover> ?y ?z . FILTER bif:contains(?z, 'made') } if u try this filter in a large resultset it will time out =] On Tue, Dec 15, 2009 at 7:50 PM, John Abjanic <[email protected]> wrote: > I also tried the following but it timed out, no response: > > PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> > PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> > > SELECT ?label ?x > WHERE > { > ?x rdfs:label ?label. > > FILTER regex(?label, "(?i)engine"@en). > > > Please advise. > > -John > > -----Original Message----- > From: Richard Cyganiak [mailto:[email protected]] > Sent: Tuesday, December 15, 2009 12:43 PM > To: John Abjanic > Cc: [email protected] > Subject: Re: [Dbpedia-discussion] problem with SPARQL query > > Hi John, > > Try "Jet engine"@en. The literal has an RDF language tag to indicate > that it's the English label. > > Best, > Richard > > > > > On 15 Dec 2009, at 19:47, John Abjanic wrote: > > > Hello all, > > > > I am trying to do the following: > > > > PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> > > PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> > > > > SELECT ?label ?x > > WHERE > > { > > ?x rdfs:label ?label. > > ?x rdfs:label "Jet engine" > > > > } > > > > > > and I get no results > > but when I try: > > > > SELECT ?s ?p ?o > > WHERE { > > ?s ?p ?o. > > FILTER(?s = <http://dbpedia.org/resource/Jet_engine> ). > > } > > > > I get results and there is label for "Jet engine" > > > > http://dbpedia.org/resource/Jet_engine > > http://www.w3.org/2000/01/rdf-schema#label > > Jet engine > > > > > > > > > > Why does the 1st SPARQL not work right? > > > > Thanks, John > > > ------------------------------------------------------------------------ > ------ > > This SF.Net email is sponsored by the Verizon Developer Community > > Take advantage of Verizon's best-in-class app development support > > A streamlined, 14 day to market process makes app distribution fast > > and easy > > Join now and get one step closer to millions of Verizon customers > > http://p.sf.net/sfu/verizon-dev2dev > > _______________________________________________ > > Dbpedia-discussion mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion > > > > ------------------------------------------------------------------------------ > This SF.Net email is sponsored by the Verizon Developer Community > Take advantage of Verizon's best-in-class app development support > A streamlined, 14 day to market process makes app distribution fast and > easy > Join now and get one step closer to millions of Verizon customers > http://p.sf.net/sfu/verizon-dev2dev > _______________________________________________ > Dbpedia-discussion mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion >
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