SPARQL查询rdf容器(rdf:Bag)
我有这个RDFSPARQL查询rdf容器(rdf:Bag),rdf,sparql,Rdf,Sparql,我有这个RDF <?xml version="1.0" encoding="UTF-8"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:com="http://www.example.com/com#"> <rdf:Description rdf:about="http://www.example.com/com#1"> <com:cities
<?xml version="1.0" encoding="UTF-8"?>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:com="http://www.example.com/com#">
<rdf:Description rdf:about="http://www.example.com/com#1">
<com:cities>
<rdf:Bag>
<rdf:li>A</rdf:li>
<rdf:li>B</rdf:li>
<rdf:li>D</rdf:li>
</rdf:Bag>
</com:cities>
<com:name>1</com:name>
</rdf:Description>
<rdf:Description rdf:about="http://www.example.com/com#2">
<com:cities>
<rdf:Bag>
<rdf:li>C</rdf:li>
<rdf:li>B</rdf:li>
</rdf:Bag>
</com:cities>
<com:name>2</com:name>
</rdf:Description>
<rdf:Description rdf:about="http://www.example.com/com#3">
<com:cities>
<rdf:Bag>
<rdf:li>C</rdf:li>
<rdf:li>B</rdf:li>
<rdf:li>D</rdf:li>
</rdf:Bag>
</com:cities>
<com:name>3</com:name>
</rdf:Description>
</rdf:RDF>
但它只会检查第一个元素。我可以用rdf:_2,rdf:_3。。。使用UNION,但我不知道包中rdf:li的数量。
有没有像rdf:all这样的东西?
还是其他解决方案?
谢谢使用
rdfs:member
?cities rdfs:member ?s.
如果您的系统在属性URI上支持它或筛选器:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
...
?cities ?prop ?s. FILTER (strstarts(str(?prop), str(rdf:_)))
前缀rdf:
...
城市?道具?s。过滤器(strstarts(str(?prop),str(rdf:)))
rdfs:member不为我工作,但第二个解决方案为我工作。谢谢!
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
...
?cities ?prop ?s. FILTER (strstarts(str(?prop), str(rdf:_)))