Re: RDF vs RDBMS

Fabien Barbas wrote:
> Many key aspects have been mentionned so far.
> 
> I'd like to know what you guys think about modification possibilities of
> ontologies (RDF model). RDF and SPARQL are great to query an existing
> model, but what about creating, modifying or deleting some parts of it?
> SPARQL has no INSERT or DELETE commands.
>

True for the version coming up. There are (very informal) discussions
already to see if and when a next version of SPARQL would be defined,
and would it include. Nothing is decided yet (obviously, the goal is to
finish the current SPARQL version first), but the insert/delete feature
is high on almost everybody's list...

> Should it be understood that RDF is intended primarely as a query
> technology?
> 

See above.


> As for now, the only way to modify RDF model is to go with API like
> Jena, to remove the old statement and to reinsert it. It's a pain and
> it's not really efficient.
> 
> Any advice?
> 

-- 

Ivan Herman, W3C Semantic Web Activity Lead
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