Re: [Virtuoso-users] Unable to setup UTF-8 encoding in the relational DB

2017-03-01 Thread Rob Vesse
Even if the database is configured for UTF-8 it still matters how you insert the data. I’ve had similar problems in the past where the issue was that the connection to the database was using a different encoding. If memory serves you have to explicitly set the character set on your ODBC/JDBC/ADO

Re: [Virtuoso-users] sparql INSERT with URI fragments not working

2014-03-10 Thread Rob Vesse
Hugh This isn't a bug AFAICT, a naked # is not allowed in a SPARQL prefixed name, even in 1.1 it needs escaping with a \ See the PL_LOCAL_ESCAPE rule - http://www.w3.org/TR/sparql11-query/#rPN_LOCAL_ESC So the Virtuoso parser looks to be correct in treating the # onwards as a comment which is

Re: [Virtuoso-users] bif:rdf_make_iid_of_qname() no longer supported?

2014-02-17 Thread Rob Vesse
Thanks for the information, I'll switch over to using the sql: prefix for the function call Thanks for the great support as always, Rob From: Hugh Williams mailto:hwilli...@openlinksw.com>> Date: Friday, 7 February 2014 15:18 To: Rob Vesse mailto:rve...@yarcdata.com>> Cc:

Re: [Virtuoso-users] bif:rdf_make_iid_of_qname() no longer supported?

2014-02-07 Thread Rob Vesse
server version information would be useful Or alternatively do you know if swapping bif: for sql: is backwards compatible with older Virtuoso releases? Thanks, Rob From: Hugh Williams mailto:hwilli...@openlinksw.com>> Date: Friday, 7 February 2014 11:48 To: Rob Vesse mailto:rve...@yarcdata.co

Re: [Virtuoso-users] bif:rdf_make_iid_of_qname() no longer supported?

2014-02-07 Thread Rob Vesse
][Virtuoso Server]SQ074: Line 7: SP031: SPARQL compiler: Unknown function bif:rdf_make_iid_of_qname() I.e. I am making a SPASQL query/update Rob From: Hugh Williams mailto:hwilli...@openlinksw.com>> Date: Thursday, 6 February 2014 17:36 To: Rob Vesse mailto:rve...@yarcdata.com>> Cc: &qu

Re: [Virtuoso-users] bif:rdf_make_iid_of_qname() no longer supported?

2014-02-06 Thread Rob Vesse
found issues with 6.1.7 and did a rebuild Btw this was a pre-built Windows binary downloaded from the VOS wiki so those links should be checked and updated if relevant Rob From: Hugh Williams mailto:hwilli...@openlinksw.com>> Date: Thursday, 6 February 2014 12:44 To: Rob Vesse mail

[Virtuoso-users] bif:rdf_make_iid_of_qname() no longer supported?

2014-02-06 Thread Rob Vesse
Hi All I've run into an issue with after upgrading to a recent Virtuoso 6 installation to reproduce a user reported bug in my Virtuoso integration. That bug was an easy fix but in running regression testing one of my tests for an unrelated feature no longer functions. Essentially the problem

Re: [Virtuoso-users] Virtuoso Construct Query - Creating URI problem

2013-01-07 Thread Rob Vesse
The error from the Jena parser is caused by the use of bif:concat which is not known by the Jena parser I believe the simpler way to use Virtuoso bif functions without bypassing the ARQ parser is to simply surround bif functions with < > I.e. Rob From: Hugh Williams Date: Monday, January 7,

Re: [Virtuoso-users] Blank nodes in INSERT DATA

2013-01-02 Thread Rob Vesse
The difference in behavior is in line with the SPARQL specification An INSERT DATA clause can only add concrete triples I.e. no blank nodes are permitted However an INSERT can add blank nodes because it functions more like a CONSTRUCT, bear in mind that for each solution a fresh blank node is gen

Re: [Virtuoso-users] Wrong graph URI

2012-12-11 Thread Rob Vesse
Hugh The SPARQL specification specifically says the following: "A SPARQL query is executed against an RDF Dataset which represents a collection of graphs. An RDF Dataset comprises one graph, the default graph, which does not have a name, and zero or more named graphs, where each named graph is id

Re: [Virtuoso-users] Deleting Blank Nodes via ADO.Net Provider

2012-06-01 Thread Rob Vesse
Thanks again Ivan With some tinkering I was able to achieve the behavior I was after using big:rdf_make_iid_of_qname() with a DELETE query This won't work in all cases but should work for the common cases. Cheers, Rob On 6/1/12 3:43 PM, "Rob Vesse" wrote: >Thanks Ivan

Re: [Virtuoso-users] Deleting Blank Nodes via ADO.Net Provider

2012-06-01 Thread Rob Vesse
Thanks Ivan that looks really helpful if somewhat tacky Most of the time I expect the triples that wants deleting will have been very recently retrieved from Virtuoso itself so it's likely I can modify my code to keep the original nodeID IRIs around and use those to look up the internal Ids. In f

Re: [Virtuoso-users] Deleting Blank Nodes via ADO.Net Provider

2012-05-31 Thread Rob Vesse
og -- http://www.openlinksw.com/blogs/ LinkedIn -- http://www.linkedin.com/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 Managemen

Re: [Virtuoso-users] Inserting Blank Nodes via ADO.Net Provider

2012-05-23 Thread Rob Vesse
://twitter.com/OpenLink Google+ -- http://plus.google.com/100570109519069333827/ Facebook -- http://www.facebook.com/OpenLinkSoftware Universal Data Access, Integration, and Management Technology Providers On 23 May 2012, at 16:44, Rob Vesse wrote: > Hugh > > Some help with this would be mu

Re: [Virtuoso-users] Inserting Blank Nodes via ADO.Net Provider

2012-05-23 Thread Rob Vesse
the standard but I'm wondering what is now the best way to insert data containing blank nodes via the ADO.Net provider? Can I still use INSERT DATA and just use some special syntax for blank nodes E.g. <_:bnode> or Or do I need to use an alternative method like call DB.DBA.TTLP() ?

[Virtuoso-users] Inserting Blank Nodes via ADO.Net Provider

2012-05-21 Thread Rob Vesse
need to use an alternative method like call DB.DBA.TTLP() ? Rob Vesse

Re: [Virtuoso-users] overriding the server timeout

2012-02-21 Thread Rob Vesse
No that is not exposed in the public API anywhere but can be fixed internally and I have just done so, unfortunately I already made the 0.6.0 release this past weekend so the fix won't hit an official release until 0.6.1 now Rob On 2/21/12 6:44 AM, Hugh Williams wrote: Hi Sherif / Rob, The

Re: [Virtuoso-users] overriding the server timeout

2012-02-17 Thread Rob Vesse
Hugh - dotNetRDF does not explicitly set the timeout anywhere in our code so the timeout Sherif sees presumably is set automatically in the ADO.Net provider somewhere? If he uses the constructor he shows where he passes a custom connection string that gets used to create a VirtuosoConnection

Re: [Virtuoso-users] Virtuoso ADO.Net provider stopped working with strange TypeLoadException error?

2011-08-16 Thread Rob Vesse
r and the Virtuoso one looked like the cause. Apologies, Rob Vesse From: "Hugh Williams" Sent: 16 August 2011 19:04 To: rve...@vdesign-studios.com Subject: Re: [Virtuoso-users] Virtuoso ADO.Net provider stopped working with strange TypeLoadExcep

[Virtuoso-users] Virtuoso ADO.Net provider stopped working with strange TypeLoadException error?

2011-08-16 Thread Rob Vesse
ny ideas on why this error may suddenly have cropped up? Any chance you could send me an up to date snapshot of the provider (preferably built on Windows) so that I can check that it isn't my version that is at fault? Regards, Rob Vesse

Re: [Virtuoso-users] Major bug with Virtuoso SPARQL Results

2011-03-07 Thread Rob Vesse
witter.com/OpenLink On 4 Mar 2011, at 09:22, Rob Vesse wrote:Hi I have attached a file which is a trace of the request produced by using TamperData in Firefox. My version of Virtuoso is 6.1.3127 so maybe it is fixed in the 6.2 releases? I can also reproduce this error using SPASQL by making t

Re: [Virtuoso-users] Major bug with Virtuoso SPARQL Results

2011-03-04 Thread Rob Vesse
unc=detail&aid=2995846&group_id=161622&atid=820574 On 03/02/2011 02:42 PM, Rob Vesse wrote: > > Hi all > > I've found what appears to be a major bug with Virtuoso's SPARQL results > for one specific query namely: > > SELECT DISTINCT ?g WHERE { GRAPH ?g { ?s

[Virtuoso-users] Mistyping of automatically generated DataTable columns in ADO.Net Provider

2011-03-02 Thread Rob Vesse
s be fixed please? Regards, Rob Vesse

[Virtuoso-users] Major bug with Virtuoso SPARQL Results

2011-03-02 Thread Rob Vesse
remove the DISTINCT modifier then they come back as fine. I assume that this is a bug in your optimisation of the above query since the above is commonly optimised specially since it is often used to list the graphs of a SPARQL endpoint. Regards, Rob Vesse

Re: [Virtuoso-users] Missing datatypes using ADO.NET

2011-02-28 Thread Rob Vesse
rt.openlinksw.comForums: http://boards.openlinksw.com/supportTwitter: http://twitter.com/OpenLink On 21 Feb 2011, at 09:00, Rob Vesse wrote:Hi Hugh et al Building the latest ADO.Net provider from the snapshot source does appear to fix the datatypes issue for me but I then encounter another issue.

Re: [Virtuoso-users] Missing datatypes using ADO.NET

2011-02-21 Thread Rob Vesse
y NTriples/Turtle string and g.BaseUri.ToSafeString() with an arbitrary test URI string. And this._db is obviously a reference to a VirtuosoConnection object. Thanks again for fixing this, Rob Vesse ---- From: "Hugh Williams" Sent: 20 February 2

Re: [Virtuoso-users] Missing datatypes using ADO.NET

2011-02-04 Thread Rob Vesse
ted issues and shall report back with our findings ... Best RegardsHugh WilliamsProfessional ServicesOpenLink SoftwareWeb: http://www.openlinksw.comSupport: http://support.openlinksw.comForums: http://boards.openlinksw.com/supportTwitter: http://twitter.com/OpenLink On 26 Jan 2011, at 14:04,

Re: [Virtuoso-users] Missing datatypes using ADO.NET

2011-01-26 Thread Rob Vesse
ger using the RDF/XML representation. Cheers, Moritz Am 26.01.2011 13:03, schrieb Rob Vesse: Hi Moritz What API are you using to manipulate the RDF within your application or have you rolled your own? My API dotNetRDF (http://www.do

Re: [Virtuoso-users] Missing datatypes using ADO.NET

2011-01-26 Thread Rob Vesse
back correctly. Regards, Rob Vesse From: "Moritz Eberl" Sent: 26 January 2011 11:51 To: virtuoso-users@lists.sourceforge.net Subject: [Virtuoso-users] Missing datatypes using ADO.NET Hello, i am trying to use Virtuoso as RDF store for a C# a

[Virtuoso-users] Can't perform a SPARUL INSERT/DELETE without a named graph

2010-12-17 Thread Rob Vesse
graph? I'm using the Virtuoso ADO.Net provider to interact with Virtuoso so alternative methods that use this are the only viable options for me. Rob Vesse

Re: [Virtuoso-users] [dotNetRDF-bugs] >>: The strange naming of blank nodes in JSON

2010-08-19 Thread Rob Vesse
o Blank Nodes which causes a specific node to be referenced? My experience in the past was that any time you input data into Virtuoso every Blank Node in the data got a newly minted ID but I don't know if you've changed this? Best Regards, Rob Vesse ---