我有两个rdf文件,第一个是数据流,第二个是知识库。我希望通过这个查询将能够在两个文件之间进行连接,以便根据流文件的idSensore值来查找知识库中相同idSensore的信息(tipologia和valore)。
这是我的代码:
<rdf:Description rdf:about="http://www.dati.lombardia.it/resource/_647i-nhxk/18899588">
<socrata:rowID>18899588</socrata:rowID>
<rdfs:member rdf:resource="http://www.dati.lombardia.it/resource/_647i-nhxk"/>
<ds:idsensore>2447</ds:idsensore>
<ds:data>2016-05-01T09:10:00</ds:data>
<ds:valore>6</ds:valore>
<ds:stato>VA</ds:stato></rdf:Description>
这是流RDF文件:
<rdf:Description rdf:about="http://www.dati.lombardia.it/resource/nf78-nj6b/1">
<socrata:rowID>1</socrata:rowID>
<rdfs:member rdf:resource="http://www.dati.lombardia.it/resource/nf78-nj6b"/>
<ds:idsensore>2001</ds:idsensore>
<ds:tipologia>Temperatura</ds:tipologia>
<ds:unit_dimisura>C</ds:unit_dimisura>
<ds:idstazione>100</ds:idstazione>
<ds:nomestazione>Milano - Lambrate</ds:nomestazione>
<ds:quota>120</ds:quota>
<ds:provincia>MI</ds:provincia>
<ds:nomecomune>Milano</ds:nomecomune>
<ds:indirizzo>parco Lambro - acquedotto</ds:indirizzo>
<ds:cgb_nord>5038191</ds:cgb_nord>
<ds:cgb_est>1520147</ds:cgb_est>
<ds:lng>9.25751572</ds:lng>
<ds:lat>45.49678183</ds:lat>
<ds:location><geo:SpatialThing>
<geo:lat>45.49678183</geo:lat>
<geo:long>9.25751572</geo:long></geo:SpatialThing></ds:location></rdf:Description>
这是知识库RDF文件:
{
"ConnectionStrings": {
"DefaultConnectionString": "Default",
"CustomConnectionString": "Custom"
}
}
请帮我查询