SPARQL

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SPARQL (recursively, SPARQL Protocol and RDF query language) is undergoing standardization by the RDF Data Access Working Group (DAWG) of the World Wide Web Consortium. On the track towards status of W3C Recommendation, it was released as a Candidate Recommendation in April 2006, but returned to Working Draft status in October 2006, due to open issues. Several implementations for multiple programming languages exist. "SPARQL will make a huge difference" according to Tim Berners-Lee in a May 2006 interview.[1]

Contents 1 Competitors 2 External links 2.1 Specs, Articles, and Tutorials 2.2 Tool Support 2.3 Public SPARQL Query Service Endpoints 2.4 Various SPARQL Usecase Demos

[edit] Competitors

Other RDF query languages include DQL, N3QL, R-DEVICE, RDFQ, RDQ, RDQL, SeRQL and Versa.

[edit] External links

[edit] Specs, Articles, and Tutorials

• W3C RDF Data Access Working Group
• RDF query language survey
• XML.com: Introducing SPARQL: Querying the Semantic Web
• RDF query use cases, including query language samples
• SPARQL Query language
• SPARQL Protocol
• SPARQL Query XML Results Format
• SPARQL Frequently Asked Questions

[edit] Tool Support

• TopBraid Composer

[edit] Public SPARQL Query Service Endpoints

• Pellet OWL Reasoner
• ARC
• SPARQLer

[edit] Various SPARQL Usecase Demos

• SPARQL Calendar Demo
• SPARQL & Web Clipboard Demo
• Live SPARQL Demo - Virtuoso Universal Server