Re: [Virtuoso-users] How to SPARQL query from a rdf dataset

Hello Hugh, That's very helpful, thank you! I also found another way by observing how this virtuoso sparql endpoint works. (http://virtuoso.openlinksw.com/sparql/) It sends another parameter *should-sponge=soft *besides the sparql query string, and so I can get the results I want. Best, Mai 201

Re: [Virtuoso-users] How to SPARQL query from a rdf dataset

Hi Jason, Passing a Virtuoso Sponger pragma directive in you query to force the invocation of the sponger RDF extraction services to extract data from the graph URI should work as indicated below: SQL> sparql select count(*) from where { ?s ?p ?o. }; callret

Re: [Virtuoso-users] Support for reading from named pipes.

On 1/20/14 3:03 PM, Jerven Bolleman wrote: Hi Hugh, No not really, just trying another knob to see if things could go faster… >From the perspective of the data warehousing set up we would use, directly loading triples from a ssh & gunzip pipe into virtuoso would be nice (as our data production

Re: [Virtuoso-users] Support for reading from named pipes.

Hi Hugh, No not really, just trying another knob to see if things could go faster… >From the perspective of the data warehousing set up we would use, directly >loading triples from a ssh & gunzip pipe into virtuoso would be nice (as our data production and data hosting are in different data cen

Re: [Virtuoso-users] Support for reading from named pipes.

Hi Jerven, In speaking to development the Virtuoso "file_io..." function were written for use with regular files and thus do not support named pipes. Do you have a specific need for this support for data loads ? Best Regards Hugh Williams Professional Services OpenLink Software, Inc. //

Re: [Virtuoso-users] How to SPARQL query from a rdf dataset

I'm not much of a Virtuoso user, but I do see that there's a similar URL that might work better. What happens if you use the following (note the .owl at the end)? from On Mon, Jan 20, 2014 at 6:19 AM, Jason Mai wrote: > Dear all, > > I'd like

[Virtuoso-users] How to SPARQL query from a rdf dataset

Dear all, I'd like to know if it's possible to do sparql query from a rdf dataset as described in http://www.w3.org/TR/rdf-sparql-query/#specDataset I tried it in open-sourced openlink virtuoso sparql endpoint with this query: select * from where { ?s ?p ?o.