Hello, I loaded some data into Virtuoso OSE 6.1.3 using the BulkLoader. For every dataset I defined a named graph. How can I now delete all Triples from one of those graphs?
I tried 'sparql clear graph <URI>' in conductor's interactive SQL (as user dba), the system said it executed the query successfully. But after that, I still can retrieve the data from this graph via SPARQL Select. Alternatively I tried 'sparql drop graph <URI>'. But this lead to an error saying: "Message: SPARUL_DROP() failed: graph <URI> has not been explicitly created before." So is there another command I should use? Another question to is how to update data describing a single RDF-Subject. How could I issue commands to delete all Triples having a certain URI as RDF-Subject? (and then bulk load the new data). Thanks for your help. Andreas
