SPARQL is minutes and a query language for the semantic Web. SPARQL is a recursive acronym and stands for S'PARQL Protocol and ''' R ''' DF Query L'anguage.

The RDF DATA ACCESS Working Group (DAWG) of the World Wide Web Consortium advances the development and standardisation of SPARQL. Momentarily (since April 2006) SPARQL concerned at the Entwicklungsstufe Candidate Recommendation. SPARQL is the successor of several query languages (e.g. RDQL), which likewise access RDF data.

ARQ is an implementation, which can accomplish SPARQL inquiries.

An example

The following example finds the names of all African capitals.

PREFIX ABC: < http://example.com/exampleOntologie #>  capital country WHERE  x ABC: town center  capital.  y ABC:  country.  x ABC:  y.  y ABC: isInContinent ABC: africa. } 

Variabeln become with placed in front "“characterized (possible is also "„$ "“). Become all variable allocations capital country returned, which fit on the samples of these four RDF Tripeln.

Because writing the URIs out reduces the Leserlichkeit of an inquiry, prefixes can be used. Here "„ABC stands: "“for "„http://example.com/exampleOntologie # "“

Related links

• SPARQL Candidate Recommendation, 06 April 2006
• W3C RDF DATA ACCESS Working Group (English)
• SPARQL Tutorial (English)
• ARQ inquiry engine

Articles in category "SPARQL"

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Related Websites

We found here 3 related websites.

• SPARQL Protocol for RDF
  The SPARQL Protocol and RDF Query Language ( SPARQL ) is a query language ... A conformant SPARQL Protocol service may provide a default RDF dataset against ...


• SPARQL Query Language for RDF
  The SPARQL protocol specification uses the ext/rdf+n3 media type, ... SPARQL is a query language for getting information from such RDF graphs. ...


• SPARQL Query Language for RDF
  This document describes a query language for RDF, called SPARQL , for querying RDF ... This is a first Public Working Draft of the Data Access SPARQL Query ...