On 16/11/11 10:10, Damian Steer wrote:
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]
Absolutely. Put some newlines in the query or use StrUtils.strjoin
Print the string is really helpful.
Damian
[1]<http://www.w3.org/TR/sparql11-query/#neg-notexists-minus>
Damian is correct.
Or use Syntax.synatxARQ where FILTER is not needed with NOT EXISTS. You
are parsing with strict SPARQL 1.1
The SPARQL-WG decided to require the word FILTER
>> Other queries without NOT EXISTS work fine. The query also executes
>> on FUSEKI's query UI without any problems.
because the parser is set to accept extensions.
Andy
