SPARQL stands for SPARQL Protocol And RDF Query Language
SPARQL is RDF Querry Language which was developed by W3C in 2008,It can be implemented by C#,Java,C.It allows for query to consist of triple partterns, conjuctions, disjunctions, and optional patterns. It make the web machine-readable. In SPARQL has a tools that allow to connect and semi-automatically construct SQARQL query for a SPARQL endpoint. There is a tool in SQARQL that is used to convert the SQARQL querry to other query language, for example to SQL and to Xquery. Sparql is allow the database to recurite the tripple patterns.
Queries are used for reading data from the database, in SPARQL language there four different query variations for different purposes.
PREFIX foaf: <http://xmlns.com/foaf/0.1/> SELECT ?name ?email WHERE { ?person a foaf:Person. ?person foaf:name ?name. ?person foaf:mbox ?email. }
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