[Virtuoso-users] construct + aggregate function

2011-12-01 Thread Jürgen Jakobitsch
hi, i've been struggling a little bit with a construct query with a statement where the object is value from an aggregate function. is this at all possible? i'd like to have the following query as a construct query : SELECT DISTINCT ?category count(?category) AS ?count WHERE { ?s

Re: [Virtuoso-users] RDFZZ Error DB.DBA.SPARQL_REXEC returned unsupported Content-Type 'application/sparql-results+xml'

2011-12-01 Thread Weers, Jon
Hey Kingsley, Thanks for responding. Yes, this an attempt to access Reegle's PoolParty endpoint from the OpenEI Virtuoso endpoint. Here is the query in question: PREFIX foaf: http://xmlns.com/foaf/0.1/ PREFIX skos:http://www.w3.org/2004/02/skos/core# SELECT ?s WHERE { SERVICE

Re: [Virtuoso-users] RDFZZ Error DB.DBA.SPARQL_REXEC returned unsupported Content-Type 'application/sparql-results+xml'

2011-12-01 Thread Hugh Williams
Hi Jon, What is the version of the Virtuoso Server you are attempting to run your query against as the query you provide runs successfully for me, returning one row, against one of our demo server:

Re: [Virtuoso-users] RDFZZ Error DB.DBA.SPARQL_REXEC returned unsupported Content-Type 'application/sparql-results+xml'

2011-12-01 Thread Kingsley Idehen
On 12/1/11 11:27 AM, Hugh Williams wrote: What is the version of the Virtuoso Server you are attempting to run your query against as the query you provide runs successfully for me, returning one row, against one of our demo server:

[Virtuoso-users] Propery value uniqueness

2011-12-01 Thread Ícaro Medeiros
Dear Virtuoso users, Is there any easy way to verify property value uniqueness? I know there is the owl:allDifferentFrom property in OWL, but I think this is not the case for datatype properties, for example. Best regards, Icaro Medeiros. -- Atenciosamente, Ícaro Medeiros.