import com.hp.hpl.jena.rdf.model.* ;
import com.hp.hpl.jena.rdql.* ;

import java.util.* ;
import java.io.* ;

public class rdql_code_test
{
    static public void main(String[] argv)
    {
        try {
            Model model = ModelFactory.createDefaultModel() ;
            model.read(new FileInputStream("Develop_FAQs_20050321.rdf"),
                       "http://nowhere/",
                       "RDF/XML") ;

            String queryString = "SELECT ?x, ?I_Keyword "+
            "WHERE ((?x, <http://protege.stanford.edu/rdfI_Keyword>, ?I_Keyword)"+
            "AND ?I_Keyword eq 'Close'";

            Query query = new Query(queryString) ;
            query.setSource(model);
            QueryExecution qe = new QueryEngine(query) ;

            QueryResults results = qe.exec() ;
            for ( Iterator iter = results ; iter.hasNext() ; )
            {
                ResultBinding res = (ResultBinding)iter.next() ;
                Object x = res.get("x") ;
                Object I_Keyword = res.get("I_Keyword") ;
                System.out.println("x = "+x+"   I_Keyword = "+I_Keyword) ;
            }
            results.close() ;
            
        } catch (Exception ex)
        {
            System.err.println("Exception: "+ex) ;
            ex.printStackTrace(System.err) ;
        }
    }
}

以上程式我查詢了某一個屬性(I_Keyword)，當值為"Close"時將資料查詢出來，但是我好像只能那個屬性的值
完全要等於"Close"才查詢得出來(請參考紅色字體的程式)..
請問我要怎麼寫才能將只要其值有包含Close這個字串，就查詢出來呢??(就像SQL的Like語法==> like '%Close%')..
不知是否有這樣的語法可用呢??(請)
謝謝各位囉!!

SELECT ?person
WHERE  (?person vCard:FN ?fullName)
AND    ?fullName =~ /Smith/i
USING  vCard FOR <http://www.w3.org/2001/vcard-rdf/3.0#>

which searches for people with a formatted name containing "smith" (case insentive).  It would be less efficient than looking for the vCard:familyName property with value "Smith". The "does not match" operator is "!~".

以上謝謝大家的幫忙．．．．
若有說錯的地方，煩請再指正......
謝謝!!

SPARQL支持正则表达式，可以作出类似SQL的Like那样的条件~~~

加 i 应该是是否忽略大小写的开关，SPARQL里是这样