如何使用Virtuoso创建SPARQL端点?

问题描述

我刚刚设置了Virtuoso，并使用以下代码将本地计算机上存在的OWL文件(使用Protege软件创建)加载到Virtuoso中:

I have just setup Virtuoso and I have loaded an OWL file (created with Protege software) present on my local machine in to Virtuoso using the following code:

SQL> DB.DBA.RDF_LOAD_RDFXML_MT (file_to_string_output ('antibiotics.owl'), '', 'http://myexample.com');

现在，我的问题是如何访问URI myexample.com?如何在Virtuoso中创建SPARQL端点，以便对其进行查询?

Now, my question is how do I access the URI myexample.com ? How do I create a SPARQL endpoint in Virtuoso so that I can query it?

推荐答案

无需创建sparql端点，因为它已经存在.检查Virtuoso实例sparql端点 http://cname:port/sparql 上插入的RDF数据(通常: http://localhost:8890/sparql ).要进行一些测试查询，请使用Virtuoso(指挥)的Web界面 http://localhost:8890/conductor 并转到链接的数据"标签.输入查询，例如:

No need to create a sparql endpoint, since it's already there.Check the inserted RDF data on your Virtuoso instance sparql endpoint http://cname:port/sparql (usually: http://localhost:8890/sparql). To do some test queries, use the web interface of Virtuoso (the conductor) http://localhost:8890/conductor and go to the 'Linked Data' tab.Enter a query like:

SELECT ?s ?p ?o
FROM <http://myexample.com>
WHERE {?s ?p ?o}
LIMIT 1000

开始.

您还可以通过在sparql查询前面添加'SPARQL'，直接从vsql命令行进行查询.要直接通过html获取请求以特定格式获取结果，请执行以下操作:

You can also query directly from the vsql command line by adding 'SPARQL ' in front of your sparql query.To get results in a specific format directly via html get request:

http://localhost:8890/sparql?query=(YourQueryUriEncodedWithout())&format=json

有关更详细的答案，请参阅此处的文档: http://docs.openlinksw.com/virtuoso/rdfsparql.html

For a more detailed answer, consult the documentation here:http://docs.openlinksw.com/virtuoso/rdfsparql.html

景点:

16.2.3.15. SPARQL Endpoint with JSON/P Output Option: Curl Example
16.2.5. SPARQL Inline in SQL

如果您仍然想要自己的端点:

If you still want your own endpoint:

16.2.3.4.6. Creating and Using a SPARQL-WebID based Endpoint

最诚挚的问候...

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