I am looking for a SPARQL 1.1 implementation. Any pointers? Thanks

How can I delete all graphs from virtuoso sparql endpoint. Thanks. Sandeep

I'm trying to get the most recent articles on a subject out of http://pubmed.bio2rdf.org/sparql. I can get a list of articles on a subject but as soon as I try to order by date the …

I'm trying to find persons (soccer players) in DBPedia by name and birthdate. This returns one result (expected): SELECT ?player ?birth { ?player a dbpedia-owl:SoccerPlayer . …

Cygri mentioned in reply to the question Distributed triple stores that Virtuoso can be set up in a clustered mode. How would one do this using the Virtuoso that comes with Debian …

Take these two queries: SELECT distinct ?name WHERE { optional { ?redirect dbpedia2:redirect <http://dbpedia.org/resource/Lionel_Messi>. ?redirect rdfs:l …

Hello, This is a simple question but I couldn't find any information. Once I have loaded a graph using RDF_LOAD_XML_MT how do I go about delete it. Thanks Sandeep

Are there any detailed comparisons between the mapping capabilities of D2RQ vs. those of the wrapper system built into Virtuoso? It seems that the D2RQ package is fairly complete, …

I've run the following script against virtuoso CLI: sparql clear graph http://jenainftest/#; ttlp('@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>. @prefix rdfs: …

How to get started with virtuoso universal server for rdf querying using sparql?

I'm running SPARQL queries like: prefix ch: <http://pele.farmbio.uu.se/chembl/?> select count(?s) where { ?s a ch:Compound . } or any other 'a' query asking all Resourc …

Is it possible to list the named graphs using a SPARQL query?

Did any one here use Sponger cartridge available in virtuoso openlink software? I had installed virtuoso opensource triple store and am currently trying to use the sponger cartridg …