Greetings, I'm developing a project using ODC data (http://opendatacommunities.org/). The endpoint (http://opendatacommunities.org/sparql) has limited capacity such that it cannot be used for production environments (queries regularly fail, timeout), so therefore I created a Fuseki service using a TBD dataset. I then downloaded .nt dumps of each graph I wanted to use (like http://opendatacommunities.org/data/homelessness/homelessness-acceptances/ethnicity) and uploaded them without issue.
While I am able to successfully get results for simple queries (like just returning ?s ?p ?o), more specific queries return zero results without error. PREFIX dc: <http://purl.org/dc/elements/1.1/> PREFIX dim: <http://purl.org/linked-data/sdmx/2009/dimension#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX apf: <http://jena.hpl.hp.com/ARQ/property#> PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> PREFIX owl: <http://www.w3.org/2002/07/owl#> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX tgt: < http://opendatacommunities.org/graph/homelessness/homelessness-acceptances/ethnicity > PREFIX fn: <http://www.w3.org/2005/xpath-functions#> SELECT DISTINCT ?rp ?label WHERE { ?property (rdfs:subPropertyOf)* dim:refPeriod . ?rp rdfs:label ?label GRAPH tgt: { ?subject ?property ?rp} } ORDER BY ?rp LIMIT 1 The above query works (sometimes!) on the original endpoint against the original graph (run it by clicking here: http://tinyurl.com/ohmnxfh). However, the same does not result from my Fuseki service - despite replacing tgt: with the correct URI of the graph on my server, ensuring that the other prerequisite PREFIXs are correctly defined, and trying to read up/troubleshoot. My server/environment is inside a private network which cannot be accessed from outside, therefore I'm unable to provide public access to my endpoint for testing. However, I am grateful for any advice in solving this problem and any tests or workarounds :) Kind Regards, Richard.
