document: D2RQ\/update : updating relational data via virtual RDF D2RQ is a popular RDB-to-RDF mapping platform that supports mapping relational databases to RDF and posing SPARQL queries to these relational databases . However , D2RQ merely provides a read-only RDF view on relational databases . Thus , we introduce D2RQ\/Update -- an extension of D2RQ to enable executing SPARQL\/Update statements on the mapped data , and to facilitate the creation of a read-write Semantic Web .
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