Re: [Virtuoso-users] Complex SPARQL query - Performance hints?

Hi Pantelis: Do you really need to use the REGEX ignore case feature? If not,  you can substitute some of your FILTER expressions by BGPs. For example, replacing: GRAPH { ?variableI ?variableJ . ?variableI ?variableK .     FI

[Virtuoso-users] reset DBA password

Hi I've recently changed DBA pass, and I forgot to write it down :( Is there any way to reset it? I'm using Virtuoso version 07.20.3214 best regards Lorena -- ___ Virtuoso-us

[Virtuoso-users] Virtuoso SPARQL optimization strategies

Hi I would like to know which are the optimization strategies that Virtuoso 7 uses for SPARQL queries. Is there any documentation available on this topic? I was also wondering if it is possible to choose between different strategies, as in Jena TDB http://jena.apache.org/documentation/tdb/opti

Re: [Virtuoso-users] XPath normalize-space function support

ogle+ -- http://plus.google.com/100570109519069333827/ Facebook -- http://www.facebook.com/OpenLinkSoftware Universal Data Access, Integration, and Management Technology Providers On 8 Sep 2015, at 21:50, Lorena Etcheverry <mailto:lore...@fing.edu.uy>> wrote: Hi I'd like to use this f

[Virtuoso-users] XPath normalize-space function support

Hi I'd like to use this function http://www.w3.org/TR/xpath-functions/#func-normalize-space in a SPARQL query in Virtuoso 7. Is it available? If I declare the prefix fn as prefix fn: and then use the function as fn:normalize-space(str(?s)) I retrieve

Re: [Virtuoso-users] Library to parse SPARQL queries

or this? > > Best regards, > Kinh > > On 25/06/15 15:36, Lorena Etcheverry wrote: >> Hi Kinh. >> >> I've been using this javascript SPARQL parser for a while and it's very >> good. >> >> http://ruben.verborgh.org/blog/2014/08/22/writing-

Re: [Virtuoso-users] Library to parse SPARQL queries

Hi Kinh. I've been using this javascript SPARQL parser for a while and it's very good. http://ruben.verborgh.org/blog/2014/08/22/writing-a-sparql-parser-in-javascript/ best lorena On 06/25/2015 10:15 AM, Cong Kinh Nguyen wrote: > Hi everybody, > > I have been using Jena library to parse SPARQL

[Virtuoso-users] Long SPARQL query translation to SQL

Hi I'm still having this problem. Any suggestions? best regards Lorena Forwarded Message Subject:Long SPARQL query translation to SQL Date: Tue, 26 May 2015 13:23:54 -0300 From: Lorena Etcheverry To: virtuoso-users@lists.sourceforge.net Hi I'm

[Virtuoso-users] Long SPARQL query translation to SQL

Hi I'm following the indications found in http://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtTipsAndTricksAanalyzingSPARQLQuery to obtain a explain plan of a long SPARQL query under Virtuoso 7. Although I have set blobs on, I receive the following error when trying to obtain the SQL e

Re: [Virtuoso-users] get SPARQL query execution time

> Google+ -- http://plus.google.com/100570109519069333827/ > Facebook -- http://www.facebook.com/OpenLinkSoftware > Universal Data Access, Integration, and Management Technology Providers > >> On 19 May 2015, at 15:59, Lorena Etcheverry > <mailto:lore...@fing.edu.uy>> wrote

[Virtuoso-users] get SPARQL query execution time

Hi I would like to know if there is a way to get, via HTTP, the estimated execution time of a SPARQL query in VOS 7. best regards, Lorena -- One dashboard for servers and applications across Physical-Virtual-Cloud Wid

Re: [Virtuoso-users] Deleting data from a graph

graph. Is it correct? Is there a way to delete just a portion of a graph that's specified in a file? Regards, Eliza From: Lorena Etcheverry mailto:lore...@fing.edu.uy>> Date: Monday, March 30, 2015 3:43 PM To: "virtuoso-users@lists.sourceforge.net <mailto:virtuoso-users@li

Re: [Virtuoso-users] Deleting data from a graph

Hi Eliza what I usually do is run the following SPARQL query in isql SPARQL DEFINE sql:log-enable 3 CLEAR GRAPH ; more info here http://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtTipsAndTricksGuideDeleteLargeGraphs best regards, Lorena On 03/30/2015 04:35 PM,

[Virtuoso-users] isql construct output format

Hi I've successfully executed a sparql CONTRUCT query via ISQL using the following command isql dba dba VERBOSE=OFF BANNER=OFF PROMPT=OFF ECHO=OFF BLOBS=ON ERRORS=stdout < query.sparql >results.txt Now I have a problem with the output format, which does not seem to be any valid RDF seri