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Differentiates between a Default Graph and a Named Graph, and formulates queries using the GRAPH clause.

Simple SPARQL Tutorial: Assigning Values, String Functions .. more on Subqueries

Building on previous tutorials in the series, this tutorial quickly reviews how to bind properties to variables, then moves on to showing how string functions [...]

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By |August 13th, 2015|0 Comments

Simple SPARQL Tutorial: Querying Named Graphs – using NAMED GRAPH and GRAPH

Continuing the discussion of Named Graphs from the previous tutorial in the series, this tutorial discusses the functionality provided by using URIs to name graphs. [...]

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By |August 13th, 2015|0 Comments

SPARQL Nuts & Bolts

The "SPARQL 101" lesson introduced SPARQL, explained how it relates to other query languages, and went through its basic syntax. This lesson builds on that [...]

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By |August 13th, 2015|0 Comments

Simple SPARQL Tutorial: Subqueries (Queries Inside Queries)

Tutorial explaining how the it is possible to nest one query within another query in order to avoid the queries running independently (and thus returning [...]

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By |August 13th, 2015|0 Comments

Simple SPARQL Tutorial: Searching with Blank Nodes

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: [...]

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By |August 13th, 2015|0 Comments

SPARQL Tutorial: Basic Patterns

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 [...]

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By |August 13th, 2015|0 Comments

SPARQL by Example

This is a very in-depth resource that covers nearly every aspect of SPARQL (both 1.0 and 1.1). Includes example queries (over many datasets), links to [...]

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By |August 13th, 2015|0 Comments

SPARQL Tutorial: Datasets

This tutorial covers RDF Datasets- the units that are queried by a SPARQL query. An RDF Dataset consists of a default graph, and a number [...]

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By |August 13th, 2015|0 Comments

Simple SPARQL Tutorial: More on Querying Named Graphs – Multiple NAMED GRAPHs

Building on the previous tutorials, which discussed Named Graphs and how to construct queries using the NAMED GRAPH keyword, this tutorial shows how to run [...]

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By |August 13th, 2015|0 Comments

Mashing Up LOGD Data with SPARQL

By the end of this tutorial the user should be able to understand how to use SPARQL queries to mash up LOGD datasets, as well [...]

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By |August 13th, 2015|0 Comments