A visual knowledge-graph summary of the W3C Recommendation (21 March 2013) describing the SPARQL 1.1 family of specifications for querying and manipulating RDF graphs.
An introduction to the SPARQL 1.1 set of specifications for querying and manipulating RDF graph content on the Web or in an RDF store.
The overview is one of eleven SPARQL 1.1 Recommendations produced by the W3C SPARQL Working Group.
Endorsed by W3C as a stable document suitable for reference and citation.
SPARQL 1.1 Query Language supports SELECT, ASK, and CONSTRUCT queries with features like aggregates and path expressions.
SPARQL 1.1 Update provides a language for modifying RDF data.
Protocols define how SPARQL queries and updates are sent to services, plus service descriptions and graph store operations.
A small FOAF example shows Alice and her social connections, used to illustrate queries and results.
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
<http://example.org/alice#me> a foaf:Person ;
foaf:name "Alice" ;
foaf:mbox <mailto:alice@example.org> ;
foaf:knows <http://example.org/bob#me> ,
<http://example.org/charlie#me> ,
<http://example.org/snoopy> .