Hello, this is the query. How can we add high score of another subject like
Mathsscore, I simply add Mathscore after Englishscore, but not working
"SELECT * +
" WHERE {" + " {"+ "select (max(?score) as ?highScore)"
+ " { ?student dd:Englishscore ?score" + " ?student2 dd:Mathsscore
?score2"
" }" +
" } " +
"?student dd:Englishscore ?highScore" + " ?student2
dd:Mathsscore ?score2"
"}";
On Thu, Jan 26, 2017 at 6:13 PM, javed khan <javedbtk...@gmail.com> wrote:
> I am sorry Rob, I have posted this issue on Stack overflow yesterday, and
> I thought I have posted the details here.
> Sorry and the problem is solved as I used QuerySolution in while loop.
>
> Thank you
>
> On Thu, Jan 26, 2017 at 5:12 PM, Rob Vesse <rve...@dotnetrdf.org> wrote:
>
>> Once again you have failed to provide a minimal complete example. This
>> means the minimal code needed to reproduce the problem and any extra
>> resources needed e.g. your data. Complete means that your code should be
>> able to be copied and pasted and run.
>>
>> http://stackoverflow.com/help/mcve
>>
>> Note you haven’t actually told us what the problem is i.e. What is the
>> specific error message you got. It gets an exception is not a problem
>> statement!
>>
>> We have been telling you this for weeks, if you are not actually going
>> to make an effort then people are going to stop trying to help you
>>
>> Rob
>>
>> On 26/01/2017 13:06, "javed khan" <javedbtk...@gmail.com> wrote:
>>
>> *The following query works * :
>>
>> "SELECT ?student ?highScore " +
>>
>> " WHERE {" + " {"+ "select (max(?score) as
>> ?highScore)"
>> + " { ?student dd:Englishscore ?score" +
>> " }" +
>> " } " +
>> "?student dd:Englishscore ?highScore" +
>>
>>
>> "}";
>>
>> Query query2 = QueryFactory.create(queryString2);
>> QueryExecution qexec = QueryExecutionFactory.create(query2, model2) ;
>> ResultSet results2 = qexec.execSelect() ;
>>
>> Literal r= results2.next().get("highScore").asLiteral();
>> String ss= r.getLexicalForm();
>> JOptionPane.showMessageDialog(null,"High score of Physics is"+s +
>> "by
>> Student");
>>
>> This query now works but when I include also the student name, it
>> gives me
>> exception again.
>>
>> * Resource r2= results2.next().get("student").asResource();*
>> * String s=r2.toString();*
>>
>>
>>
>>
>>
>>
>
