On 15 Nov 2011, at 16:58, Christian Fuerber wrote:
> Dear all,
>
> I experience some problems with query execution over jena. For some reason I
> cannot execute the following query to my local TDB:
> "{" +
> "?i a ?tclassURI ." +
> "NOT EXISTS{" +
> "?i ?tpropURI ?value ." +
> "}" +
> "}UNION{" +
> "?i a ?tclassURI ." +
> "?i ?tpropURI \"\"." +
> "}" +
That's hard to read, but you want either *FILTER* NOT EXISTS or MINUS here. [1]
Damian
[1] <http://www.w3.org/TR/sparql11-query/#neg-notexists-minus>
