Re: [Virtuoso-users] embedded sparql in sql

2013-04-11 Thread Sandeep Gupta
company/openlink-software/ > Twitter -- http://twitter.com/OpenLink > Google+ -- http://plus.google.com/100570109519069333827/ > Facebook -- http://www.facebook.com/OpenLinkSoftware > Universal Data Access, Integration, and Management Technology Providers > > On 12 Apr 2013

[Virtuoso-users] embedded sparql in sql

2013-04-11 Thread Sandeep Gupta
Hi, I am looking for examples for embedding sparql queries within the SQL from clause. I came across such a documentation sometime but I am not able to locate it now. Can someone please point me to it if they happen to know where it might be located. Thanks. Sandeep --

[Virtuoso-users] error while loading RDF/XML data

2010-09-17 Thread Sandeep Gupta
Hi, While loading data from isql interface using the following command DB.DBA.RDF_LOAD_RDFXML_MT(file_to_string_output('/tmp/lamhdi_rdf.xml'),'', ' http://lamhdi.neuinfo.org'); I get this strange error. read-ahead of a free or out of range page dp L=33536, database not necessarily corrupted I

[Virtuoso-users] large estimated query time for queries that specify several graphs.

2010-06-10 Thread Sandeep Gupta
Hi, Our institution is hosting an sparql endpoint which was populated using sponger feature. Due to this we have several named graphs (roughly 30-40). Sometimes we aren't sure which graphs would be relevant for the query so we list all the graphs in a one from clause. Something like this : Select