Ok,
thanks Hugh for your answer, I thinking that Virtuoso infers
automatically that a relation is a subproperty of itself.
I have a second question so : why virtuoso get me one result
(urn:my:graphA urn:my:graphX1) ?
It should get me no results ?
Olivier
Le 09/01/2017 à 00:50, Hugh Williams a écrit :
Hi Oliver,
There are no rdfs:subClassOf or rdfs:subPropertyOf relations in the
graph of the inserted data:
SQL> SPARQL SELECT * FROM <mygraph> WHERE {?s ?p ?o};
s p
o
LONG VARCHAR LONG VARCHAR
LONG VARCHAR
_______________________________________________________________________________
urn:my:graphX1 http://www.w3.org/1999/02/22-rdf-syntax-ns#type
urn:my:graphmytype2
urn:my:graphX2 http://www.w3.org/1999/02/22-rdf-syntax-ns#type
urn:my:graphmytype2
urn:my:graphC http://www.w3.org/1999/02/22-rdf-syntax-ns#type
urn:my:graphmytype1
urn:my:graphB http://www.w3.org/1999/02/22-rdf-syntax-ns#type
urn:my:graphmytype1
urn:my:graphA http://www.w3.org/1999/02/22-rdf-syntax-ns#type
urn:my:graphmytype1
urn:my:graphC urn:my:graphmyrel
urn:my:graphX1
urn:my:graphA urn:my:graphmyrel
urn:my:graphX1
urn:my:graphB urn:my:graphmyrel
urn:my:graphX2
8 Rows. -- 5 msec.
SQL>
Please refer to the following documentation on Virtuoso inference and
reasoning and rdfs:subClassOf & rdfs:subPropertyOf support …
http://docs.openlinksw.com/virtuoso/rdfsparqlrulesubclassandsubprop/
Best Regards
Hugh Williams
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On 6 Jan 2017, at 09:42, Olivier Filangi <olivier.fila...@inra.fr
<mailto:olivier.fila...@inra.fr>> wrote:
Dear all,
I have a strange behaviour with a kind of query with Virtuoso
(07.20.3217).
Accoding the following tripplet I put with a insert query :
PREFIX rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX :<urn:my:graph>
INSERT DATA
{
GRAPH <mygraph> {
:A rdf:type :mytype1.
:B rdf:type :mytype1.
:C rdf:type :mytype1.
:X1 rdf:type :mytype2.
:X2 rdf:type :mytype2.
:A :myrel :X1.
:B :myrel :X2.
:C :myrel :X1.
}
}
When I request with on data with the query :
PREFIX rdfs:<http://www.w3.org/2000/01/rdf-schema#>
PREFIX rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX :<urn:my:graph>
SELECT DISTINCT ?A ?B
WHERE
{
?A ?subProperty8 ?B.
?subProperty8 rdfs:subPropertyOf* :myrel.
#constraint 1
?A rdf:type ?A_SubClassOf.
?A_SubClassOf rdfs:subClassOf* :mytype1.
#constraint 2
?B rdf:type ?B_SubClassOf.
?B_SubClassOf rdfs:subClassOf* :mytype2.
}
I get only one result :
urn:my:graphA urn:my:graphX1
If I remove the first or the second constraint, I get all results that I
should find :
urn:my:graphA urn:my:graphX1
urn:my:graphC urn:my:graphX1
urn:my:graphB urn:my:graphX2
Could you say me if I did a wrong sparql insertion/request or if it's a
bug ?
Regards,
Olivier F.
--
Filangi Olivier
+33 (0)2 23 48 51 48
Biodiversity and Polyploidy team - UMR1349 IGEPP - INRA - Agrocampus
Ouest
+33 (0)2 99 84 74 22
GenOuest Bioinformatics Platform - IRISA
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Filangi Olivier
+33 (0)2 23 48 51 48
Biodiversity and Polyploidy team - UMR1349 IGEPP - INRA - Agrocampus Ouest
+33 (0)2 99 84 74 22
GenOuest Bioinformatics Platform - IRISA
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