[Virtuoso-users] Versioning for RDF graphs

2010-06-26 Thread Chris Wj
Is there a way to specify versioning (tracking changes) for a particular rdf graph uri? I don't need it for all RDF, but for certain named graphs, I want to be able to evaluate the change over time. -Chris

Re: [Virtuoso-users] Versioning for RDF graphs

2010-06-26 Thread Kingsley Idehen
Chris Wj wrote: Is there a way to specify versioning (tracking changes) for a particular rdf graph uri? I don't need it for all RDF, but for certain named graphs, I want to be able to evaluate the change over time. -Chris

Re: [Virtuoso-users] Versioning for RDF graphs

2010-06-26 Thread Chris Wj
Would I be able to sparql query the graph as it was at a particular point in the past? On Sat, Jun 26, 2010 at 10:50 AM, Kingsley Idehen kide...@openlinksw.comwrote: Chris Wj wrote: Is there a way to specify versioning (tracking changes) for a particular rdf graph uri? I don't need it for

Re: [Virtuoso-users] Versioning for RDF graphs

2010-06-26 Thread Aldo Bucchi
Hi Chris, OpenLink has been working on this, as Kingsley noted. However, in the meantime, here's an idea. I used it for a small scale project that needed a similar feature over one year ago. Add triggers to the RDF_QUAD table ( I'm talking SQL here ). Use these triggers to append each