[Virtuoso-users] data integration example

Hi, In the Virtuoso documentation is there an example which shows the heterogeneous data integration capability for data residing in a database, an XML file and a RDF file. I am looking for an example that shows how data from these three places (RDBMS, XML and RDF) can be brought into Virtuo

Re: [Virtuoso-users] Calling SQL from SPARQL

OK, so it's possible to invoke SQL from SPARQL. Great. But how to get the result back to SPARQL? For example, I want to fetch the list of registered namespaces (SELECT * from RDF_PREFIX). How can I get this list back to a SPARQL endpoint? Thanks beforehand. Pierre 2008/2/6, Tim Haynes : > > Pie

Re: [Virtuoso-users] Calling SQL from SPARQL

Pierre De Wilde wrote: > Hi, > It seems possible to call SQL from SPARQL as referenced in doc 'Calling SQL > from SPARQL' (§15.2.5). > Have you some examples? Is it possible to call statements > like backup_online('backup_#', 1); from a SPARQL endpoint? > Well, I can give you a different exam

[Virtuoso-users] Calling SQL from SPARQL

Hi, It seems possible to call SQL from SPARQL as referenced in doc 'Calling SQL from SPARQL' (§15.2.5). Have you some examples? Is it possible to call statements like backup_online('backup_#', 1); from a SPARQL endpoint? Thanks beforehand. Your great support is really appreciated. Pierre

Re: [Virtuoso-users] Fwd: Segmentation fault

Hi Pierre, Hugh, thanks for your support. We will wait then some news from you (release 5.0.5). cheers, Erick Pierre De Wilde wrote: It was a possible workaround. I have used FILTER(isIRI(?o) = false) instead of FILTER(!isIRI(?o)) in 5.0.3, but it doesn't seem to work with sameTerm(). Re

Re: [Virtuoso-users] Fwd: Segmentation fault

It was a possible workaround. I have used FILTER(isIRI(?o) = false) instead of FILTER(!isIRI(?o)) in 5.0.3, but it doesn't seem to work with sameTerm(). Regarding 5.0.4, it may be safer to wait the 'official' confirmation that your problem is solved. Pierre 2008/2/6, Erick Antezana : > > Hi Pierr

Re: [Virtuoso-users] Segmentation fault

Hi Erik, I have been able to create the seg fault running the query you provide below against a Mac OS X VOS 5.0.4 release build. This has been reported to development for analysis and resolution and we shall notify you when a fix is available. Best Regards, Hugh Williams Professional Services O

Re: [Virtuoso-users] Fwd: Segmentation fault

Hi Pierre, I tried out the line: FILTER(sameTerm(?prot,cco:CCO_B0001243) = false) and some variants like: FILTER(sameTerm(?prot,cco:CCO_B0001243) = 'false') I've got the following message: 37000 Error SQ074: Line 9: syntax error at '=' before 'isnull' SPARQL query: define sql:signal-void-va

[Virtuoso-users] Fwd: Segmentation fault

Hi Erick, In 5.0.3, FILTER(!...) may not work properly. Instead, try this: FILTER(sameTerm(?prot,cco:CCO_B0001243) = false) In 5.0.4, FILTER(!...) seems to work properly. Pierre 2008/2/6, Erick Antezana : > > Hi, > > we're running 5.0.3 on a linux box. So far everything was going > perfectly

Re: [Virtuoso-users] RDF Proxy Service from localhost

Hi Pierre, As my colleague Mitko stated in his email to you the RDF Mappers VAD package needs to be installed on your local Virtuoso instance for this to work as seen on the demo server. Mine worked for me last night as I tested against a virtuoso instance for which the RDF Mappers were already

Re: [Virtuoso-users] RDF Proxy Service from localhost

Thanks a lot for your support. It's working now. Pierre 2008/2/6, Mitko Iliev : > > Hi Pierre > > I forgot to mention that sparql needs permissions in this case , so you > just execute : > grant SPARQL_UPDATE to "SPARQL"; via ISQL tool or via conductor and it > should start working. > Also just in

[Virtuoso-users] Segmentation fault

Hi, we're running 5.0.3 on a linux box. So far everything was going perfectly until we tested the following query which is very simple against a huge graph (that could be found here: http://www.cellcycleontology.org/ontology/rdf/cco.rdf): PREFIX rdfs:

Re: [Virtuoso-users] Some issues in Virtuoso 5.0.4

Hello Pierre, Oops, this is a real bug; it seemes to me that VOS 5.0.5 will happen earlier than expected. Thank you for this report. Best Regards, Ivan Mikhailov, OpenLink Software. On Tue, 2008-02-05 at 17:23 +0100, Pierre De Wilde wrote: > After a fresh installation of VOS 5.0.4, I ran the fol

Re: [Virtuoso-users] RDF Proxy Service from localhost

Hugh, Thanks for your feedback. The build number of Virtuoso Open Source is 5.00.3025 running on a MacBookPro with Mac OS X 10.5.1 (Leopard). Here is the content of the URIQA section of virtuoso.ini file: [URIQA] DefaultHost = localhost:8890 I have tried with IP address as well as fully quali

Re: [Virtuoso-users] RDF Proxy Service from localhost

Hi Pierre, The source document is a xHTML containing GRDDL thus you need to install rdf_mappers_vad.vad package in order to get SPARQL and thus proxy service to transform it to RDF. Best Regards, Mitko Iliev Developer Virtuoso Team OpenLink Software http://www.openlinksw.com/virtuoso Cross Pla