This is what I tried : ~/apps/apache-jena-3.16.0/bin/tdbupdate --loc TDB --verbose --debug --update=taxref-alignments.upd.rq
Where file taxref-alignments.upd.rq contains : prefix wdtn: <http://www.wikidata.org/prop/direct-normalized/> prefix owl: <http://www.w3.org/2002/07/owl#> # Example of adding alignment triples from external SPARQL endpoint INSERT { GRAPH ?TARGET_GRAPH { ?TAXON_TAXREF owl:sameAs ?TAXON_WKDT . } } WHERE { BIND ( <urn:alignments:taxref> AS ?TARGET_GRAPH ) SERVICE <https://query.wikidata.org/sparql> { ?TAXON_WKDT wdtn:P3186 ?TAXON_TAXREF . } } Result : the *TDB is not changed*; there are warnings that does not seems important: 11:57:23 WARN ResponseProcessCookies :: Invalid cookie header: "Set-Cookie: WMF-Last-Access=20-Jul-2020;Path=/;HttpOnly;secure;Expires=Fri, 21 Aug 2020 00:00:00 GMT". Invalid 'expires' attribute: Fri, 21 Aug 2020 00:00:00 GMT 11:57:23 WARN ResponseProcessCookies :: Invalid cookie header: "Set-Cookie: WMF-Last-Access-Global=20-Jul-2020;Path=/;Domain=.wikidata.org;HttpOnly;secure;Expires=Fri, 21 Aug 2020 00:00:00 GMT". Invalid 'expires' attribute: Fri, 21 Aug 2020 00:00:00 GMT I checked by several queries that TDB is not changed: SELECT * WHERE { GRAPH ?G { ?S ?P <http://taxref.mnhn.fr/lod/taxon/29388/13.0> . } } LIMIT 100 SELECT * WHERE { GRAPH <urn:alignments:taxref> {?S ?P ?O . } } LIMIT 100 How could I debug this, not knowing whether Jena or Wikidata server is at fault ? NOTE 1 : the corresponding, also federated, query gives results: prefix wdtn: <http://www.wikidata.org/prop/direct-normalized/> SELECT * WHERE { SERVICE <https://query.wikidata.org/sparql> { ?TAXON_WKDT wdtn:P3186 ?TAXON_TAXREF . } } LIMIT 44 when run by: ~/apps/apache-jena-3.16.0/bin/rsparql --debug --verbose --service= http://localhost:9000/sparql --query taxref-alignments.rq where localhost is semantic_forms server (Jena based) ; or by: ~/apps/apache-jena-3.16.0/bin/rsparql --debug --verbose --service= https://query.wikidata.org/sparql --query taxref-alignments.rq NOTE 2: I also tried with a more ordinary graph ( fictitious ) URI : < http://alignments.taxref.org> Jean-Marc Vanel <http://semantic-forms.cc:9112/display?displayuri=http://jmvanel.free.fr/jmv.rdf%23me> +33 (0)6 89 16 29 52 Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui Chroniques jardin <http://semantic-forms.cc:1952/history?uri=http%3A%2F%2Fdbpedia.org%2Fresource%2FChronicle>
