SPARQL查询:如何我只得到一个文字或字符串作为结果呢?(SPARQL Query: How I

2019-08-18 08:39发布

Data:

<untitled-ontology-5:OperationName rdf:datatype="http://www.w3.org/2001/XMLSchema#string">
  Adhesive Curing
</untitled-ontology-5:OperationName>

SPARQL Query:

PREFIX rdf:<http://wwww.semanticweb.org/ontologies/2012/7/9/untitled-ontology-5#>
SELECT ?object
WHERE { ?subject  rdf:OperationName ?object .       
}

Result:

Adhesive Curing^^http://www.w3.org/2001/XMLSchema#string 

My Question:

The result of the SPARQL Query is not the result what I wanted. The right result should contain only the Literal/String without the URI-part. I'd like to create the following result:

Proper Result:

Adhesive Curing

Answer 1:

您需要使用STR()函数来获取你的文字的词汇标签:

查询:

SELECT (str(?object) as ?label) 
WHERE { ?subject rdf:OperationName ?object . }


文章来源: SPARQL Query: How I get only a literal or string as result?
标签: rdf sparql