This document specifies the D2RQ mapping language. D2RQ is a declarative language to describe mappings between relational database schemata and OWL/RDFS ontologies. @en
(2014-11-20) Bernard Vatant: The vocabulary is not accessible from its declared namespace or URI at review time.
(2012-08-10) Bernard Vatant: Vocabulary inserted into the LOV ecosystem. History retrieved from release notes at https://github.com/d2rq/d2rq/blob/d871bbdde4e0a7ebd96ca66adc76d918cb7548f3/RELEASE_NOTES.md
(2013-10-29) Ghislain Atemezing: The vocabulary is associated to the tool D2RQ platform for accessing relational databases as RDF graphs, supporting R2RML mapping language.
