The SPARQL spec is a bit vague on what DESCRIBE should return ("The RDF
returned is determined by the information publisher"), which is why some
endpoints return only the triples that have that resource as a subject,
and others also return triples that have that as a subject. The simplest
way to get exactly the triples you want is to specify them with a
CONSTRUCT query like this:
CONSTRUCT {
<MY_NS://knowledge/my_resource> ?p1 ?o1 .
?s2 ?p2 <MY_NS://knowledge/my_resource> .
}
WHERE {
<MY_NS://knowledge/my_resource> ?p1 ?o1 .
?s2 ?p2 <MY_NS://knowledge/my_resource> .
}
Bob DuCharme
learningsparql.com
On 6/23/2014 8:11 AM, Thorben Wallmeyer wrote:
Hi all,
I've got a model/graph that I would like to query. All I do is
executing the query "DESCRIBE <MY_NS://knowledge/my_resource>". This
returns me all statements that use the named resource as subject. What
do I have to do, to get all statements that use this resource as
object, too? How does the query has to look like? Everything i tried
did not have the expected effect.
Can you give me a hint?
Thanks in advance,
Thorben
