How to get data type property values using SPARQL

Posted by udayalkonline on Stack Overflow See other posts from Stack Overflow or by udayalkonline
Published on 2010-06-08T07:08:42Z Indexed on 2010/06/08 7:12 UTC
Read the original article Hit count: 284

Filed under:

sparql

hey,

I have created some sample ontology in protege.According to my ontology there is a class called person and which has sub class called Student.There are some student individuals(john,paul,marry,...). I have diffiend some data property called "email" and assigned their email addresses.

Following query which is resulting all the individuals in ontology.But I want to get each individual and their email address.

String queryStr = "PREFIX rdfs: http://www.w3.org/2000/01/rdf-schema# "+ "PREFIX rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns# "+ "select ?ind "+ "where { "+ "?ind rdf:type http://www.semanticweb.org/ontologies/2010/5/Ontology1275975684120.owl#Student ;"+

"}\n ";

Above query was tested on jena in eclipse IDE.

any idea..?

Thank in advance!

Related posts about sparql

Understanding what SPARQL is

as seen on Stack Overflow - Search for 'Stack Overflow'
This is a terribly beginner series of questions, but after reading through a good 30 SPARQL tutorials I can't seem to wrap my head around what SPARQL is or how to begin using it. Is it executed on the client side? Is microsoft somehow going to be able to mess this up? Can you use a common relational… >>> More
UTF-8 formatting in SPARQL

as seen on Stack Overflow - Search for 'Stack Overflow'
How can I "say" to SPARQL that ?churchname is in UTF-8 formatting? because response is like:PraÅ¾skÃ½ hrad PREFIX lgv: <http://linkedgeodata.org/vocabulary#> PREFIX abc: <http://dbpedia.org/class/yago/> SELECT ?churchname WHERE { <http://dbpedia.org/resource/Prague> geo:geometry… >>> More
Exact matching of strings in SPARQL?

as seen on Stack Overflow - Search for 'Stack Overflow'
I have this query. It match anything which has "South in its Name". But I only want the one whose foaf:name exactly matches "South" SELECT Distinct ?TypeLabel Where { ?a foaf:name "South". ?a rdf:type ?Type. ?Type rdfs:label ?TypeLabel. } >>> More
How to display sparql query result in the formatted html table

as seen on Stack Overflow - Search for 'Stack Overflow'
How can I display the result of my sparql query into html table?. Any idea? >>> More
Problem with a select SPARQL query on dbpedia

as seen on Stack Overflow - Search for 'Stack Overflow'
At http://dbpedia.org/sparql/ I want to select something like this: SELECT ?hostCity WHERE { <http://dbpedia.org/resource/Lisbon> <http://dbpedia.org/ontology/hostCity> ?hostCity . } Do you know, where is a problem? >>> More

Developer IT