[redland-dev] parse and query rdf/xml file

Dave Beckett dave at dajobe.org
Sat Jul 14 05:06:35 BST 2007


jokaero at hellhound.ch wrote:
> hi all,
> I'm new to rdf and redland and I wonder how I can manage the following:
> I've got a rdf/xml file and I want to query it using sparql. I've checked
> out example1 which parses the file and stores it's content on disk as BDB
> hashes. Is it possible now to run queries against BDB using rasqal inside the C
> program itself? Can I basically use the synopsis code provided here:
> http://librdf.org/rasqal/librasqal.html  ?
> What would be the raptor_uri in this case? I keep getting segmentation
> faults if I just use the path to my rdf/xml file. Don't know what's the
> reason for this, though.

Rasqal is just a query system, no storage.  So you use the librdf API
to access and query stored data.

example5.c gives a store and query example using BDB.

> Thanks for your help!
> Markus
> 
> p.s. is there a search function to the mailing list archive?

Nope, sorry.

Dave


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