Thanks Hugh!
Maybe this is a silly question, I can run an isql command in my local
virtuoso, but how can I obtain the different graphs that are currently
in a public SPARQL end point such as http://demo.openlinksw.com/sparql
wihouth a login?
I notice that the graph URI: http://dbpedia.org
which works in here: http://dbpedia.org/sparql
E.g.: SELECT DISTINCT ?s ?o ?type FROM <http://dbpedia.org> WHERE {{?s
rdfs:label
?o. ?s rdf:type ?type .FILTER( bif:contains(?o,
"language" ) )}}LIMIT 16
It does not work in http://demo.openlinksw.com/sparql
Thanks again!
V
On 2 Dec 2010, at 15:55, Hugh Williams wrote:
Hi Vanessa,
Please use the following special function for obtaining a list of
available graphs in Virtuoso:
DB.DBA.SPARQL_SELECT_KNOWN_GRAPHS()
Which can be run from an isql command line prompt or the Virtuoso
conductor SQL interface.
Best Regards
Hugh Williams
Professional Services
OpenLink Software
Web: http://www.openlinksw.com
Support: http://support.openlinksw.com
Forums: http://boards.openlinksw.com/support
Twitter: http://twitter.com/OpenLink
On 2 Dec 2010, at 15:01, Vanessa Lopez wrote:
Hi all!
How can obtain all graph URIs in a given Virtuoso sparql end point?
I tried in http://demo.openlinksw.com/sparql with the query
SELECT DISTINCT ?g
WHERE { GRAPH ?g {?s ?p ?o}}
But it just gives me
40001 Error SR172: Transaction deadlocked
in
DB.DBA.SPARQL_SELECT_KNOWN_GRAPHS([executable]/sparql.sql:5705),
<Top Level>
SPARQL query:
define sql:signal-void-variables 1 SELECT DISTINCT ?g
WHERE { GRAPH ?g {?s ?p ?o}}
Thanks!
Vanessa.
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