This lesson compares the SPARQL and SQL query languages, which are designed to query RDF and relational data, respectively. It is designed for those who know one and want to learn the other or who need to make some decisions about which to use for some purpose. In keeping with the culture of re-use and integration that pervades the Semantic Web, SPARQL can be used to access relational data as well as RDF. This lesson also briefly mentions two recent specifications for mapping between the two types of data models.

URL: http://www.cambridgesemantics.com/semantic-university/sparql-vs-sql-intro
Keywords: SPARQL, SQL, R2RML, RDBMS
Publisher: Cambridge Semantics
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P15M
Educational use: instruction
Interactivity type: expositive

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