Uses a temporary variable to extend a query.
This presentation covers the semantics of SPARQL queries with optional matching features under entailment regimes. It argues that normative semantics may lead to answers that [...]
Tutorial showing how to modify a query to combine the results of two separate graph patterns (or conditions) using the UNION keyword. The topic is [...]
Building on the previous tutorial of the series, this tutorial shows how to construct and run SELECT queries when a dataset has blank nodes.URL: https://www.youtube.com/watch?v=y2jbA2pQL44Keywords: [...]