Hi, The only problem I see is the angle bracket behind Germany, which leads to a syntax error. Try again without it. More information about SPARQL queries at http://www.w3.org/TR/rdf-sparql-query.
Am 03.09.2013 11:13, schrieb bocai: > Hi, I encountered a strange problem: > I want to access remote dbpedia sparql endpoint throuth JENA API. I got > different results with two different sparql query in JENA API. > But I can get results with these two sparql query at > http://dbpedia.org/sparql/ website. > when I access with > "SELECT DISTINCT ?company where {?company a > <http://dbpedia.org/ontology/Company>} LIMIT 3"; > I can get result as below. > log4j:WARN No appenders could be found for logger > (com.hp.hpl.jena.util.FileManager). > log4j:WARN Please initialize the log4j system properly. > log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more > info. > ---------------------------------------------------------------- > | company | > ================================================================ > | <http://dbpedia.org/resource/%C3%9Cstra> | > | <http://dbpedia.org/resource/%C4%8Cesk%C3%A9_dr%C3%A1hy> | > | <http://dbpedia.org/resource/7th_Level> | > |---------------------------------------------------------------- > But when I access with > "PREFIX dbpedia: <http://dbpedia.org/resource/> " + > "PREFIX dbpedia-owl: <http://dbpedia.org/ontology/> " + > "select ?p where {?p dbpedia-owl:country dbpedia:Germany> .} LIMIT 10"; > there is not result > But I can get result with this > query("select ?p where {?p dbpedia-owl:country dbpedia:Germany> .} LIMIT 10";) > at the http://dbpedia.org/sparql website > p > http://dbpedia.org/resource/%C3%96lsen > http://dbpedia.org/resource/%C3%96stringen > http://dbpedia.org/resource/%C3%9Cbach-Palenberg > http://dbpedia.org/resource/%C3%9Cberherrn > http://dbpedia.org/resource/%C3%9Cdersdorf > http://dbpedia.org/resource/%C3%9Chlingen-Birkendorf > http://dbpedia.org/resource/%C3%9Crzig > http://dbpedia.org/resource/16_Blocks > http://dbpedia.org/resource/18_%E2%80%93_Allein_unter_M%C3%A4dchen > http://dbpedia.org/resource/2011_German_Grand_Prix > > ------------------------------------------------------------------------ > > > ------------------------------------------------------------------------------ > Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! > Discover the easy way to master current and previous Microsoft technologies > and advance your career. Get an incredible 1,500+ hours of step-by-step > tutorial videos with LearnDevNow. Subscribe today and save! > http://pubads.g.doubleclick.net/gampad/clk?id=58040911&iu=/4140/ostg.clktrk > > > > _______________________________________________ > Dbpedia-discussion mailing list > Dbpedia-discussion@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion > ------------------------------------------------------------------------------ Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58040911&iu=/4140/ostg.clktrk _______________________________________________ Dbpedia-discussion mailing list Dbpedia-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
