Sample SPARQL query

PREFIX dc: <http://purl.org/dc/elements/1.1/>
SELECT ?book ?title ?authorname
WHERE { 
?book dc:creator ?author .
?author dc:type <http ://hoppa.com/Painters/> .
      ?author dc:title ?authorname .
      ?book dc:title ?title .
}

…works with rdf data describing some books by painters. I tested in Dave Beckett’s Redland-based online SPARQL demo. The query finds 5 results. Seems to have some encoding errors, but apart from that, is fine. There are more DawgShows in the ESW wiki. The sparql.org demo (using Jena) also works.

Published by danbri

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