I'm using Jena TDB for loading an RDF dataset and making SPARQL queries against it. I'm using the following maven dependency: <dependency> <groupId>org.apache.jena</groupId> &l...

I'm serving a dataset containing 10-20 named graphs from a TDB dataset in Fuseki 2. I'd like to use a reasoner to do inference on my data. The behaviour I'd like to see is that triples inferred wit...

I am developing an application, which is using triple store (Jena TDB). It is clealy mentioned that TDB Supports SPARQL update and Query. Also, I understood that Fuseki is SPARQL server, that suppo...

I'm struggling with the execution of a SPARQL query in Jena, with a resulting behaviour that I don't understand... I'm trying to query the Esco ontology (https://ec.europa.eu/esco/download), and I...

There is a strange behaviour in the connection of the commandline tools of ARQ, TDB and Named Graphs. If importing data via tdbloader in a named graph it can not be queried via GRAPH clause in a SP...

I am using Jena ARQ to write a SPARQL query against a large ontology being read from Jena TDB in order to find the types associated with concepts based on rdfs label: SELECT DISTINCT ?type WHERE {...