The website defines Jena-TDB as a pure Java persistence layer for large graphs, high performance applications and embedded use. And Jena-ARQ as ARQ is a query engine for Jena that supports the SPARQL RDF Query language. SPARQL is the query language developed by the W3C RDF Data Access Working Group.
So do Jena-TDB and Jena-ARQ provide the same set of functionalities with the difference that Jena-TDB in addition provides persistence. Or are they different and provide different support and query mechanisms for SPARQL 1.1 queries. I am unable to understand the difference between Jena-ARQ and Jena-TDB. Can someone please explain this a little.
