- From: Dau, Frithjof <frithjof.dau@sap.com>
- Date: Thu, 21 Aug 2008 14:05:31 +0200
- To: "Lee Feigenbaum" <lee@thefigtrees.net>, <public-sparql-dev@w3.org>, <public-lod@w3.org>
Hi Lee, My two (actually one :-) ) pences is how full negation can be expressed with SPARQL. http://lists.w3.org/Archives/Public/public-sparql-dev/2008AprJun/0027.html Cheers Frithjof P.S. No need to say that a "SPARQL by Example" tutorial is highly appreciated :-) -----Ursprüngliche Nachricht----- Von: public-sparql-dev-request@w3.org [mailto:public-sparql-dev-request@w3.org] Im Auftrag von Lee Feigenbaum Gesendet: Donnerstag, 21. August 2008 07:58 An: public-sparql-dev@w3.org; public-lod@w3.org Betreff: soliciting your favorite (public) SPARQL queries! Hi everyone, I'm putting together a "SPARQL by Example" tutorial, which is, as the name suggests, a step-by-step introduction to SPARQL taught almost entirely through complete, runnable SPARQL queries. So far, I've gathered a great deal of example queries myself, but I know that many subscribers to these lists probably have favorite queries of their own that you might be willing to share with me. I'm looking for: 1) SPARQL queries 2) ...that can be run by anyone (no private data sets) 3a)...either by running the query against a public SPARQL endpoint 3b)...or by using a public SPARQL endpoint that will fetch HTTP-accessible RDF data (e.g. sparql.org or demo.openlinksw.com) 4) ...that answers a real* question 5) ...and that is fun!** * real is in the eye of the beholder, I imagine, but I'm not looking for "finds the predicates that relate ex:s and ex:o in this sample RDF graph" ** fun is also in the eye of the beholder. fun can be a query on fun data; a clever query that may illustrate a particular SPARQL construct ("trick"); a query that integrates interesting information; a query with surprising results; etc. thanks to anyone who is able to contribute! Lee PS I plan to make the tutorial slides available online under an appropriate CC license once they are completed.
Received on Thursday, 21 August 2008 12:31:22 UTC