From 3e929527895781d886136dc3aac6d9ad9dc9c619 Mon Sep 17 00:00:00 2001 From: Matthew Lincoln Date: Mon, 12 Sep 2016 08:47:30 -0700 Subject: [PATCH 1/3] Replace myexperiment link with one to W3C overview --- lessons/graph-databases-and-SPARQL.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lessons/graph-databases-and-SPARQL.md b/lessons/graph-databases-and-SPARQL.md index 13ee20303..5104b2c5a 100644 --- a/lessons/graph-databases-and-SPARQL.md +++ b/lessons/graph-databases-and-SPARQL.md @@ -601,8 +601,8 @@ searching, or doing other mathematical operations more complex than counting. For a more complete rundown of the commands available in SPARQL, see these links: -- [How to SPARQL](http://rdf.myexperiment.org/howtosparql?) - [Wikibooks SPARQL tutorial](http://en.wikibooks.org/wiki/XQuery/SPARQL_Tutorial) +- [Full W3C Overview of SPARQL](https://www.w3.org/TR/sparql11-overview/) Both the Europeana and Getty Vocabularies LOD sites also offer extensive, and quite complex example queries which can be good sources for understanding how to From 1c6a32085e5f270c695a2314b971aa6482c55e1b Mon Sep 17 00:00:00 2001 From: Matthew Lincoln Date: Mon, 12 Sep 2016 08:54:26 -0700 Subject: [PATCH 2/3] Note that the Europeana endpoint is no longer supported --- lessons/graph-databases-and-SPARQL.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lessons/graph-databases-and-SPARQL.md b/lessons/graph-databases-and-SPARQL.md index 5104b2c5a..7c9a72fe7 100644 --- a/lessons/graph-databases-and-SPARQL.md +++ b/lessons/graph-databases-and-SPARQL.md @@ -462,6 +462,8 @@ ORDER BY DESC(?n) ## Linking multiple SPARQL endpoints +**2016-09-12: Unfortunately, Europeana has suspended their SPARQL endpoint until further notice, so the links in the following section are no longer operative.** + Up until now, we have constructed queries that look for patterns in one dataset alone. In the ideal world envisioned by Linked Open Data advocates, multiple databases can be interlinked to allow very complex queries dependent on From 0ac9be7a8b191d5fa5ea814e037f3519d067b70a Mon Sep 17 00:00:00 2001 From: Matthew Lincoln Date: Mon, 12 Sep 2016 09:12:16 -0700 Subject: [PATCH 3/3] Note that text may be updated in the future --- lessons/graph-databases-and-SPARQL.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lessons/graph-databases-and-SPARQL.md b/lessons/graph-databases-and-SPARQL.md index 7c9a72fe7..7917749d9 100644 --- a/lessons/graph-databases-and-SPARQL.md +++ b/lessons/graph-databases-and-SPARQL.md @@ -462,7 +462,7 @@ ORDER BY DESC(?n) ## Linking multiple SPARQL endpoints -**2016-09-12: Unfortunately, Europeana has suspended their SPARQL endpoint until further notice, so the links in the following section are no longer operative.** +**2016-09-12: Unfortunately, Europeana has suspended their SPARQL endpoint until further notice, so the links in the following section are no longer operative. The text below will be retained as-is for reference purposes, and will be updated if and when Europeana renews their endpoint.** Up until now, we have constructed queries that look for patterns in one dataset alone. In the ideal world envisioned by Linked Open Data advocates, multiple