Intro to SPARQL (Part1)

Nature of a Query.

Uses of SPARQL

  • Pull values from structured and semi structured data represented in RDF.
  • Explore RDF by querying umknown relationships.
  • Perform complex joins off desperate RDF repositories in a single query.
  • Transform RDF data form one vocabulary to another.
  • Develop higher level cross platform applications.
Anatomy of a SPARQL query
  • WHERE clause specifies which data to pull out.
  • SELECT picks what data to display.
individuals tab inside entities tab in protégé
open SPARQL Query tab

Using the rdf, rdfs and owl namespaces

Using these namespaces are important in executing complex SPARQL queries. A simple example is shown as an introduction for using these namspaces.



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