CODEWITHSUNDEEP
rdfsparqlvirtuoso
User 23
User 23

Reputation: 163

Virtuoso SPARQL retrieving deleted RDF files

I am having a problem with my Virtuoso RDF Store.

I have uploaded some RDF files with the weather information. The information is repeated among the RDF files, so I decided to delete them. Although, when I make a SPARQL query, the information from the deleted RDF files is still retrieved.

Any idea of why is this happening? This is an example of a query I am making:

SELECT * 
FROM <miOnt:move>
WHERE 
  {
    ?ws <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.contextdatacloud.org/ontology/WeatherSituation>.
    ?ws <http://www.contextdatacloud.org/ontology/hasWeatherTime> ?time.
    ?time <http://www.w3.org/2006/time#inXSDDateTime> "2015-06-16T09:00:00".
    ?ws <http://www.contextdatacloud.org/ontology/hasTemperature> ?temperature
  }

I have used the cUrl command in Linux

curl -T example01.rdf http://localhost:8890/home/myFolder/example01.rdf -u user:pass

To delete them, I just used the option Delete from the Virtuoso UI:

Virtuoso UI

Thanks in advance

Upvotes: 0

Views: 212

Answers (1)

Kingsley Uyi Idehen
Kingsley Uyi Idehen

Reputation: 925

In your example, the assumption is that by removing the .rdf documents you've removed them from the internal quad store named graph into which the .rdf document content (triples) was loaded. That isn't necessarily the case. Thus, try the following SPARQL command:

CLEAR GRAPH <miOnt:move> .

OR 

DROP SILENT GRAPH <miOnt:move> .

Upvotes: 1

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