A brief, text-based tutorial covering basic patterns and solutions, the main building blocks of SPARQL queries. Discusses variables and fixed values, the SELECT query, and how to interpret solutions. Introduces QNames and the use of blank nodes.
URL: http://jena.apache.org/tutorials/sparql_basic_patterns.html
Keywords: SPARQL, QName, Blank node
Publisher: The Apache Software Foundation
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P10M
Educational use: instruction
Educational audience: professional
Interactivity type: expositive
- Formulates advanced queries on data containing blank nodes.
- Understands that a SPARQL query matches an RDF graph against a pattern of triples with fixed and variable values.
- Understands that QNames define shorthand prefixes for long URIs.
- Uses the SELECT clause to identify the variables to appear in a table of query results.
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