Re: [Virtuoso-users] Deleting Blank Nodes via ADO.Net Provider

2012-06-01 Thread Rob Vesse
Thanks again Ivan With some tinkering I was able to achieve the behavior I was after using big:rdf_make_iid_of_qname() with a DELETE query This won't work in all cases but should work for the common cases. Cheers, Rob On 6/1/12 3:43 PM, "Rob Vesse" wrote: >Thanks Ivan that looks really helpf

Re: [Virtuoso-users] Deleting Blank Nodes via ADO.Net Provider

2012-06-01 Thread Rob Vesse
Thanks Ivan that looks really helpful if somewhat tacky Most of the time I expect the triples that wants deleting will have been very recently retrieved from Virtuoso itself so it's likely I can modify my code to keep the original nodeID IRIs around and use those to look up the internal Ids. In f

Re: [Virtuoso-users] Deleting Blank Nodes via ADO.Net Provider

2012-06-01 Thread Ivan Mikhailov
Hello Rob, Two ways to refer to a particular blank node are to refer to it via some properties or to convert it to it's internal "serial number", a long integer, and back. --- Start from scratch. sparql clear graph Done. -- 4 msec. --- Insert three blank nodes with two related

Re: [Virtuoso-users] Deleting Blank Nodes via ADO.Net Provider

2012-05-31 Thread Rob Vesse
Hi Hugh Any further ideas/progress on this front? I also posted this on answers (http://answers.semanticweb.com/questions/16631/how-to-delete-triples-containing-blank-nodes-from-virtuoso) but haven't got anything illuminating there either. The best suggestion I've seen is to use a DELETE WHER