; ; "Orri Erling" . , ; ; "Orri Erling's Blog" . ; . , , ; "TPC H as Linked Data (Updated)" ; ; "TPC H as Linked Data (Updated)" ; "2008-03-06T16:22:03Z"^^ ; "2008-03-25T15:23:27.000-04:00"^^ ; ; "571c0cafbb9b5d3f15c433188d6860f5" ; ; "<p>We have a new demo online at <a href="http://demo.openlinksw.com/tpc-h" id="link-idfec5de0">http://demo.openlinksw.com/<a href="http://dbpedia.org/resource/TPC-H">tpc</a>-h</a>. This takes the industry standard <a href="http://dbpedia.org/resource/TPC-H">TPC</a>-<a href="http://dbpedia.org/resource/TPC-H">H</a> benchmark data and presents it as linked data with a <a href="http://dbpedia.org/resource/SPARQL">SPARQL</a> end point and dereferenceable URIs. </p>\n<p>This is an example of using <a href="http://data.openlinksw.com/oplweb/product_family/virtuoso#this">Virtuoso</a>&#39;s relational to <a href="http://dbpedia.org/resource/RDF">RDF</a> mapping for publishing business data, for browsing using the linked data principles and opening it to analytics queries in <a href="http://dbpedia.org/resource/SPARQL">SPARQL</a>.</p>\n<p> As noted before, we have extended <a href="http://dbpedia.org/resource/SPARQL">SPARQL</a> with aggregation and nested queries, thus making it a viable SQL substitute for decision support queries. </p>\n<p>The article at <a href="http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VOSTPCHLinkedData" id="link-id10320e88">http://<a href="http://data.openlinksw.com/oplweb/product_family/virtuoso#this">virtuoso</a>.openlinksw.com/dataspace/dav/wiki/Main/VOSTPCHLinkedData</a> gives details and the source code for the implementation.</p>\n<p> We are still working on some aspects of the more complex <a href="http://dbpedia.org/resource/TPC-H">TPC</a>-<a href="http://dbpedia.org/resource/TPC-H">H</a> queries, thus the demo is not complete with all the 22 queries. This is however enough to see a representative sample of how analytics queries work with <a href="http://dbpedia.org/resource/SPARQL">SPARQL</a> and <a href="http://data.openlinksw.com/oplweb/product_family/virtuoso#this">Virtuoso</a>&#39;s SQL-to-<a href="http://dbpedia.org/resource/RDF">RDF</a> mapping. The demo will be part of the next <a href="http://data.openlinksw.com/oplweb/product_family/virtuoso#this">Virtuoso</a> Open Source download, probably out next week.</p><a href="index.vspx?tag=database" rel="tag" style="display:none;">database</a><a href="index.vspx?tag=databases" rel="tag" style="display:none;">databases</a><a href="index.vspx?tag=semanticweb" rel="tag" style="display:none;">semanticweb</a><a href="index.vspx?tag=sparql" rel="tag" style="display:none;">sparql</a>" ; "TPC H as Linked Data (Updated)" ; ; ; , , , , , ; ; ; "2008-03-06T16:22:03Z" ; "2008-03-25T19:23:27Z" ; ; "http://www.openlinksw.com/dataspace/oerling/weblog/Orri%20Erling%27s%20Blog/1321" ; "alternate" . ; ; "Orri Erling" ; . , ; ; "Orri Erling's Blog" ; ; ; . ; ; . ; .