Virtuoso Open-Source Edition

VOS.ODSAtomOWLRefExampleDiscussions

  • Topic
  • Discussion
  • VOS.ODSAtomOWLRefExampleDiscussions(Last) -- Owiki? , 2018-04-19 06:21:09 Edit owiki 2018-04-19 06:21:09

    Discussions Applications Data Space

    PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
    PREFIX atom: <http://atomowl.org/ontologies/atomrdf#>
    PREFIX sioc: <http://rdfs.org/sioc/ns#>
    PREFIX sioct: <http://rdfs.org/sioc/types#>
    SELECT DISTINCT ?title, ?date
    WHERE 
      {
        ?forum rdf:type sioct:MessageBoard .
        ?forum sioc:container_of ?post.
        optional { ?post atom:title ?title } .
        optional { ?post atom:published ?date } .        
      }
    
    Sample Data (Live Query Results)
    • Click Here for a live SPARQL Query (via SPARQL Protocol) against a collection of Discussion posts.