- From: Olaf Hartig <hartig@informatik.hu-berlin.de>
- Date: Wed, 01 Aug 2012 18:55:10 +0200
- To: public-sparql-dev@w3.org
On Wednesday 01 August 2012 11:20:43 Leonard Jacuzzo wrote: > Hi Reza, > > An easy way to answer these fairly basic questions is to read the book > linked here. > > http://www.amazon.com/Learning-SPARQL-Bob-DuCharme/dp/1449306594 Or, as an alternative, you may also read the following slides of a SPARQL beginner's tutorial that I recently gave. You find them here: http://www.slideshare.net/olafhartig/tutorial-an-introduction-to-sparql-and- queries-over-linked-data-chapter-2-icwe-2012-ed Best, Olaf > Best, > Leonard > On Wed, Aug 1, 2012 at 3:46 AM, Olaf Hartig > > <hartig@informatik.hu-berlin.de>wrote: > > Hello Reza, > > > > Another attempt to make us do your homework exercises? > > > > A few days ago Gary King already gave you the correct answer on this list. > > > > Best, > > Olaf > > > > On Wednesday 01 August 2012 11:07:36 reza ramezani wrote: > > > Dear SPARQL Fans > > > Hi > > > I need a sparql query which returns all entities that at least one of > > > > their > > > > > triples has rdf:type predicate and Country as object . for example > > > > suppose > > > > > we have these triples: > > > > > > A Age 10 > > > A Place Qom > > > A rdf:type Country > > > > > > B Age 20 > > > B Surface 100 > > > B Place Mashhad > > > > > > C Age 40 > > > C CoastLine 2000 > > > C rdf:type City > > > > > > D Age 60 > > > D Near Wrtyu > > > D rdf: type Country > > > > > > This query must return below triples: > > > A Age 10 > > > A Place Qom > > > A rdf:type Country > > > D Age 60 > > > D Near Wrtyu > > > D rdf:type Country > > > > > > the query returns all triples related to A and D entities. Because one > > > of > > > their triples has rdf:type country as predicate and object. how can I > > > > write > > > > > this SPARQL?
Received on Wednesday, 1 August 2012 16:55:42 UTC