Querying RDF data
Linked Data, Life Sciences, and RDF Stores – Exploration and Demonstration
There is an explosion of linked RDF datasets in the life sciences domain. In practice, the exploration of these data sources is far from trivial. [...]
Learn SPARQL
This set of lessons is an introduction to SPARQL, the Semantic Web query language. The lessons begin with a basic SPARQL tutorial for beginners before [...]
Never Write SPARQL Again – Build your Queries Visually
A demonstration of Gruff, a freely available graphical triple-store browser that attempts to make data retrieval more pleasant and powerful with a variety of tools [...]
SPARQL Tutorial: Alternatives in a Pattern
This brief tutorial shows that another way of dealing with the semi-structured nature of RDF data is to query for one of a number of [...]
Introduction to SPARQL
A simple (yet thorough) introduction to SPARQL query language based on the W3C documentation. Focuses on aspects of the query language present in SPARQL 1.0 [...]
SPARQL Tutorial: Optional Information
This brief tutorial emphasizes that RDF is semi-structured data, which means that SPARQL has the ability to query for data but will fail when that [...]
Simple SPARQL Tutorial: Understanding Blank Nodes
This tutorial explains the purpose of blank nodes and gives a brief demonstration of their use.URL: https://www.youtube.com/watch?v=jnL9ZqLHJj0Keywords: SPARQL, Blank nodesAuthor: Sadawi, NoureddinDate created: 2014-03-03 07:00:00.000 [...]
SPARQL Tutorial: Data Formats
A brief, text-based tutorial (with diagrams) to be read before using the Jena API to run SPARQL queries. It explains that the data to be [...]
SPARQL Tutorial: Filters
This brief tutorial discusses how graph matching allows patterns in a graph to be found. This section describes how the values in a solution can [...]
Simple SPARQL Tutorial: Easy to Read SPARQL Query Results
The creator of this video attempts to show us how to "think" in SPARQL by breaking down the results of one simple query and explaining [...]