Formulates advanced queries on a remote SPARQL endpoint using the SERVICE directive.
This video presentation demonstrates how to construct SPARQL queries simply and easily using the Wikidata Query Service. It works through an example of searching for [...]
The author describes how to create a single SPARQL query which pulls Linked Data from two separate endpoints to answer complex questions in cases where [...]
This S5 format slideshow details the changes made to the query language in SPARQL 1.1- it is not a basic introduction to SPARQL and assumes [...]
This lengthy slide presentation covers SPARQL 1.1. It begins with the fundamentals: graph patterns, operators, and algebraic representations. The second half dives deeply into complex [...]
Building on the previous tutorial, which showed how to query a remote dataset using the FROM keyword, this tutorial shows how to query a SPARQL [...]
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 [...]