[Virtuoso-users] ODBC and External data sources (Unicode)
Dear List, I opened a ticked in the community forum about ODBC and External data sources (Unicode). Hope someone could help debugging: https://community.openlinksw.com/t/postgresql-odbc-connection/955 Ciao, Pasquale ___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
[Virtuoso-users] GeoSPARQL support in AWS AMI Virtuoso 8.3
Dear List, I opened a ticked in the community forum about GeoSPARQL support. Hope someone could help debugging: https://community.openlinksw.com/t/virtuoso-aws-ami-pago-and-geosparql-support/946 Ciao, Pasquale ___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
[Virtuoso-users] On Linked Data Views
Hi all, I'd like to provide RDF on top of external relational tables (in Postgresql). So i guess i will have to use linked data views (and Virtuoso commercial edition): am i right? Are the linked data views dynamically synchronized with the relational database? I mean if something is changed in the (external) relational database, are these changes automatically available as RDF (via the views)? And can I configure more than 1 view? Any input will be appreciated, Many thanks, Pasquale ___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
[Virtuoso-users] GeoSPARQL
Hi all, is there a built version with the new GeoSPARQL support enabled? Or am I obliged to compile? thanks Pasquale ___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
[Virtuoso-users] Uploading data with curl
Hi all, I'd need to upload RDF triples stored into a file, let's say data.nt, into a named graph via curl. Could someone help here? Thanks Pasquale -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
[Virtuoso-users] cURL and .rq files
Hi List, is there a way to execute a query defined in a .rq file via cURL? Wold appreciate any hint Thanks Pasquale -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
[Virtuoso-users] [SPAM] Cannot upload RDF: invalid data
Dear list, I'm trying to upload the RDF triples in VOS (07.20.3217) and I get an error: "You have attempted to upload invalid data. You can only upload RDF" Can someone tell me what is wrong in these triples: https://jpst.it/15sc0 -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
[Virtuoso-users] Federated queries and time zones.
Hi List, I'm trying a federated query with some filters on date and getting weird results. Does the time zone has an impact on this kind of queries. In my case the two services have 2 different time zones: GMT+0 and GMT+1. Any feedback will be appreciated. Thanks Pasquale -- Announcing the Oxford Dictionaries API! The API offers world-renowned dictionary content that is easy and intuitive to access. Sign up for an account today to start using our lexical data to power your apps and projects. Get started today and enter our developer competition. http://sdm.link/oxford___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
Re: [Virtuoso-users] Geospatial query
Hi Hugh, we are publishing administrative units and use case is "Give me the admin unit @POINT". That's clear that @POINT there is only one administrative units of a specific type. E.g. with the following query I'm asking the admin unit "Canton" @POINT: https://tinyurl.com/z24uapm Then I get one resource: correct. Same query at another point, but returning 2 resources as a consequence of the fact that st_contains uses BBOX: not correct for me https://tinyurl.com/hh6o834 Ciao Pasquale On Fri, Mar 3, 2017 at 1:23 AM, Hugh Williams <hwilli...@openlinksw.com> wrote: > Hi > > Yes, the st_contains functions does work within a bounded box as detailed > at: > > https://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/ > VirtGeoSPARQLEnhancementDocs#Virtuoso Geo Spatial geometry functions > > Why is this a problem for you, do you have a test case to demonstrate ? > > Best Regards > Hugh Williams > Professional Services > OpenLink Software, Inc. // http://www.openlinksw.com/ > Weblog -- 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 Management Technology Providers > > > > On 27 Feb 2017, at 15:36, Pasquale Di Donato <pasquale.didon...@gmail.com> > wrote: > > Dear list, > > I'm trying to select which spatial object is at a given point with the > function bif:st_contains. > The result is more than 1 geometry: this let me assume that > bif:st_contains works with bounding boxed instead of real geometries? > > Cheers > Pasquale > > > > -- > Check out the vibrant tech community on one of the world's most > engaging tech sites, SlashDot.org <http://slashdot.org>! > http://sdm.link/slashdot___ > Virtuoso-users mailing list > Virtuoso-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/virtuoso-users > > > -- Announcing the Oxford Dictionaries API! The API offers world-renowned dictionary content that is easy and intuitive to access. Sign up for an account today to start using our lexical data to power your apps and projects. Get started today and enter our developer competition. http://sdm.link/oxford___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
[Virtuoso-users] VOS 6 vs VOS 7: regression in GeoSPARQL support
Dear list, It seems to me that GeoSPARQL support in VOS has really had a regression from version 6 to 7. In version 6 it is possible to load WKT geometries in any CRS and one can declare the CRS in the WKT representation. In version 7 one can only load WGS84 geometries and cannot declare the CRS in the WKT representation. Any reason for what seems to be a regression? Ciao Pasquale -- Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
[Virtuoso-users] Running to VOS with one virtuoso.db
Hi all I wanted to run 2 Virtuoso Open Source instances on one virtuoso.db, but it seems not possible since when the first instances is run then a lock file is created for the DB. Any hint here or is this not possible with the Open Source Edition? Pasquale -- Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
[Virtuoso-users] Geometries and CRS other than WGS84
Dear List, I'm trying to upload some geometries using a CRS other than WGS84 and I'm getting an error. Seems to me that Virtuoso doesn't support CRSs other than WGS84? Thanks for any hint. Pasquale -- Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
Re: [Virtuoso-users] CONSTRUCT GRAPH
Hi Adrian, yes that's it. Already tried and it's working. Thanks On Wed, Dec 7, 2016 at 10:34 AM, Adrian Gschwend <ml-...@netlabs.org> wrote: > On 06.12.16 14:20, Pasquale Di Donato wrote: > > Hi Pasquale, > > > PS: sorry maybe I got it. *ResultSetMaxRows *in virtuoso.ini? > > Yes that should be it. > > regards > > Adrian > > > -- > Developer Access Program for Intel Xeon Phi Processors > Access to Intel Xeon Phi processor-based developer platforms. > With one year of Intel Parallel Studio XE. > Training and support from Colfax. > Order your platform today.http://sdm.link/xeonphi > ___ > Virtuoso-users mailing list > Virtuoso-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/virtuoso-users > -- Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today.http://sdm.link/xeonphi___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
Re: [Virtuoso-users] CONSTRUCT GRAPH
PS: sorry maybe I got it. *ResultSetMaxRows *in virtuoso.ini?
On Tue, Dec 6, 2016 at 2:08 PM, Pasquale Di Donato <
pasquale.didon...@gmail.com> wrote:
> Dear all,
>
> I'm trying to CONSTRUCT a named graph (aroud 3 triples), but I'm not
> able to get all properties of a resource (get just 1 triples).
> I get all subjects in the graph but only a limited subset of the
> properties.
> Same result if I do a: SELECT * WHERE {?s ?p ?o}
>
> Any idea? Any help appreciated. Thanks
>
> Pasquale
>
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[Virtuoso-users] CONSTRUCT GRAPH
Dear all,
I'm trying to CONSTRUCT a named graph (aroud 3 triples), but I'm not
able to get all properties of a resource (get just 1 triples).
I get all subjects in the graph but only a limited subset of the properties.
Same result if I do a: SELECT * WHERE {?s ?p ?o}
Any idea? Any help appreciated. Thanks
Pasquale
--
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Access to Intel Xeon Phi processor-based developer platforms.
With one year of Intel Parallel Studio XE.
Training and support from Colfax.
Order your platform today.http://sdm.link/xeonphi___
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Re: [Virtuoso-users] Space allocation for master database
Hi Hugh, many thanks for the quick and valuable feedback. All the best, Pasquale On Sun, Nov 27, 2016 at 1:35 AM, Hugh Williams <hwilli...@openlinksw.com> wrote: > Hi Pasquale, > > Note sure what you are seeking the Master database space allocation is the > size of the virtuoso.db file on disk ie 138MB and it will grow dynamically > as required, thus provided you have more free disk space on the file system > as the database grows you should be fine. > > More important is the Memory allocation to Virtuoso for hosting the > database working set with the “NumberOfBuffers” INI file param, see the RDF > Performance tuning guide at: > > https://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/ > Main/VirtRDFPerformanceTuning > > and monitor the allocated and used buffers with the “status()” command run > from isql > > 20 buffers, 183153 used > > which is the key to performance ie being able to host the database working > in memory, rather than having to read from disk which kills performance … > > Best Regards > Hugh Williams > Professional Services > OpenLink Software, Inc. // http://www.openlinksw.com/ > Weblog -- 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 Management Technology Providers > > > On 25 Nov 2016, at 08:20, Pasquale Di Donato < > pasquale.didon...@gmail.com> wrote: > > > > Dear all, > > > > I have a Virtuoso instance with some 80.000 triples. > > Now under System Admin --> Dashboard --> Space Allocation I have: > > > > Master Database 138.00 MB, 44.61 MB free > > > > also almost full. How can I allocate more resources to the DB? > > > > Many thanks for any hint > > > > Pasquale > > > -- > > ___ > > Virtuoso-users mailing list > > Virtuoso-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/virtuoso-users > > -- ___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
[Virtuoso-users] Space allocation for master database
Dear all, I have a Virtuoso instance with some 80.000 triples. Now under System Admin --> Dashboard --> Space Allocation I have: Master Database 138.00 MB, 44.61 MB free also almost full. How can I allocate more resources to the DB? Many thanks for any hint Pasquale -- ___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
Re: [Virtuoso-users] SPARQL Service Description
Many thanks for the inputs. On Tue, Nov 22, 2016 at 4:51 PM, Davis, Daniel (NIH/NLM) [C] < daniel.da...@nih.gov> wrote: > This is the bible - https://www.w3.org/TR/sparql11-service-description/, > but it is rather complicated. > > I suggest instead you look at examples, too. Here’s mine - > https://id.nlm.nih.gov/mesh/sparql. > > > > My intuition is to concentrate on the basics – the formats supported, the > endpoints and urls. I think that the service description is mainly for > compliance with the specification, and I doubt that tools really use it. I > am very ready to be corrected, if that is not the case, but everything I > know about SPARQL Federation suggests that it is a research activity. The > service description will probably be consumed to show up in a catalog of > SPARQL interfaces. > > *From:* Pasquale Di Donato [mailto:pasquale.didon...@gmail.com] > *Sent:* Tuesday, November 22, 2016 4:53 AM > *To:* virtuoso-users@lists.sourceforge.net > *Subject:* [Virtuoso-users] SPARQL Service Description > > > > Hi all, > > > > cold someone point me to an "how to" for the configuration of the SPARQL > Service Description? > > > > Many thanks > > Pasquale > -- ___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
[Virtuoso-users] Can delete "built in" Graphs?
Dear all, considering a "fresh" installation of Virtuoso + the faceted browser, under "Linked Data --> Graphs --> Graphs" I see a list of "built in" graphs, e.g.: http://www.openlinksw.com/schemas/virtrdf# http://www.w3.org/ns/ldp# http://localhost:8890/sparql http://localhost:8890/DAV/ http://www.w3.org/2002/07/owl# b3sonto b3sifp urn:rules.skos http://www.openlinksw.com/schemas/oplweb# virtrdf-label facets Are all these graphs needed or can I delete them/some of them? Many thanks for any feedback Pasquale -- Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
Re: [Virtuoso-users] Cannot load n-triples in Virtuoso 7.20.3217
PS: learning by testing. I got it. Declaration of the spatial reference system in the geometry triples is not supported. Had to delete all <http://www.opengis.net/def/crs/EPSG/0/4326> On Wed, Sep 7, 2016 at 4:29 PM, Pasquale Di Donato < pasquale.didon...@gmail.com> wrote: > Dear list, > > I'm trying to upload (via the conductor) the following n-triples in > Virtuoso Open Source 7.2.3: > > http://www.padido.eu/cantons.nt > > and I get the error: "You have attempted to upload invalid data. You can > only upload RDF, Turtle, N3 serializations of RDF Data to the RDF Data > Store." > > I get no error if I upload to Virtuoso 6.1. > > Could someone help? > > Thanks > Pasquale > > > -- ___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
[Virtuoso-users] Cannot load n-triples in Virtuoso 7.20.3217
Dear list, I'm trying to upload (via the conductor) the following n-triples in Virtuoso Open Source 7.2.3: http://www.padido.eu/cantons.nt and I get the error: "You have attempted to upload invalid data. You can only upload RDF, Turtle, N3 serializations of RDF Data to the RDF Data Store." I get no error if I upload to Virtuoso 6.1. Could someone help? Thanks Pasquale -- ___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
Re: [Virtuoso-users] GeoSPARQL functions Support
Hi Ghislain, many thanks for your answer. By the way the page you're mentioning doesn't resolv my doubts. First the last two examples, which are using geospatial query (bif:st_intersects) are not working: the first is giving no results, the last an error. Then I'm concerned with the geospatial functions. E.g. bif:st_intersect is defined in an openlink ontology (http://www.openlinksw.com/schemas/bif#) and are based as far as I can see on SQL MM. The GeoSPARQL functions are defined here: http://www.opengis.net/def/function/geosparql/. The GeoSPARQL function for intersect is http://www.opengis.net/def/function/geosparql/sfIntersects I don't understand if these GeoSPARQL functions are supported by Virtuoso. Pasquale On Thu, Jul 28, 2016 at 11:02 AM, Ghislain ATEMEZING < ghislain.atemez...@gmail.com> wrote: > Hi Pasquale, > Yes, I think you are missing something. The point is probably that you are > not using quite well the functions in your queries?! > Please have a look at this page > http://linkedgeodata.org/GADM which contains some sample queries for the > LinkedGeo data endpoint which powered by Virtuoso. > > HTH > Ghislain > > Sent from my iPhone, may include typos > > Le 28 juil. 2016 à 08:34, Pasquale Di Donato <pasquale.didon...@gmail.com> > a écrit : > > Dear list, > > yesterday I asked via a tweet @OpenLink is Virtuoso supports the GeoSPARQL > functions here defined: http://www.opengis.net/def/function/geosparql/. > > Answer has been: "Virtuoso supports much GeoSPARQL" today and I've been > redirected to the following page: > http://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtGeoSPARQLEnhancementDocs > > In that page I see that geospatial queries are done via bif:something, > where all these bif:* are built-in SQL MM based functions. > Now if I do test with some GeoSPARQL functions, e.g. sfWithin, I get error > messages: meaninf IMHO that GeoSPARQL functions are not supported. > > Or am I missing simething? > > Ciao > Pasquale > > > -- > > ___ > Virtuoso-users mailing list > Virtuoso-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/virtuoso-users > > -- ___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
[Virtuoso-users] GeoSPARQL functions Support
Dear list, yesterday I asked via a tweet @OpenLink is Virtuoso supports the GeoSPARQL functions here defined: http://www.opengis.net/def/function/geosparql/. Answer has been: "Virtuoso supports much GeoSPARQL" today and I've been redirected to the following page: http://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtGeoSPARQLEnhancementDocs In that page I see that geospatial queries are done via bif:something, where all these bif:* are built-in SQL MM based functions. Now if I do test with some GeoSPARQL functions, e.g. sfWithin, I get error messages: meaninf IMHO that GeoSPARQL functions are not supported. Or am I missing simething? Ciao Pasquale -- ___ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
