如何从sparql端点获取rdf文件 [英] How to get rdf file from sparql endpoint
问题描述
我是Opendata的新手,需要一些帮助. Wikipedia在此URL中具有其sparql端点: http://dbpedia.org/sparql 现在,我需要编写网络服务来从dbpedia获取一些rdf文件.我应该发送什么到该端点以获取rdf文件?
I am new in opendata and need some help. Wikipedia have their sparql endpoint in this url: http://dbpedia.org/sparql Now I need to write webservice to get some rdf file from dbpedia. What should I send to this endpoint to get rdf file ?
推荐答案
发送 CONSTRUCT 查询.一个小例子:
Send a CONSTRUCT query. A little example:
CONSTRUCT { ?s ?p ?o }
WHERE { ?s ?p ?o }
LIMIT 10
WHERE子句的作用与SELECT一样,只有值填充CONSTRUCT块作为一种模板.这非常灵活-您可以在此处复制语句,也可以将它们转换为完全不同的形状.
The WHERE clause works just like that of SELECT only the values fill the CONSTRUCT block as a kind of template. It's very flexible - you can either copy statements as here or transform them into a completely different shape.
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