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An RDF query language is a computer language, specifically a query language for databases, able to retrieve and manipulate data stored in Resource Description Framework format. SPARQL is emerging as the de facto RDF query language, and is a W3C recommendation. Released as a Candidate Recommendation in April 2006, it returned to Working Draft status in October 2006, due to open issues. It returned to Candidate Recommendation status in June 2007. On 12 November 2007 the status of SPARQL changed into Proposed Recommendation. On 15 January 2008, SPARQL was standardized. ==Other RDF query languages== * DQL, XML-based, queries and results expressed in DAML+OIL * N3QL, based on Notation 3 * R-DEVICE * RDFQ, XML-based * RDQ, SQL-like * RDQL, SQL-like * RQL/RVL, SQL-like * SeRQL, SQL-like, similar to RQL/RVL * Versa (query language), compact syntax (non–SQL-like), solely implemented in 4Suite (Python) * XUL has a (template ) element in which to declare rules for matching data in RDF. XUL uses RDF extensively for databinding. * Adenine (programming language written in RDF). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「RDF query language」の詳細全文を読む スポンサード リンク
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