SPARQL

From Wikipedia, the free encyclopedia

SPARQL (pronounced "sparkle" [1]) is an RDF query language; its name is a recursive acronym that stands for SPARQL Protocol and RDF Query Language. It 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 two open issues. [2]

SPARQL allows for a query to consist of triple patterns, conjunctions, disjunctions, and optional patterns.[3]

Several implementations for multiple programming languages exist. "SPARQL will make a huge difference" according to Sir Tim Berners-Lee in a May 2006 interview. [4]

[edit] References

  1. ^ Jim Rapoza (May 2, 2006). SPARQL Will Make the Web Shine. eWeek. Retrieved on January 17, 2007.
  2. ^ Eric Prud'hommeaux, W3C; Andy Seaborne, Hewlett-Packard Laboratories (4 October 2006). SPARQL Query Language for RDF : W3C Working Draft. Retrieved on January 17, 2007.
  3. ^ XML and Web Services In The News. xml.org (6 October 2006). Retrieved on January 17, 2007.
  4. ^ Reuters. "Berners-Lee looks for Web's big leap", zdnet.co.uk, 22 May 2006. Retrieved on January 17, 2007.

[edit] External links

[edit] Specs, articles, and tutorials

[edit] Tool support

[edit] Public SPARQL query service endpoints

[edit] Various SPARQL use-case demos