关于Cloud + GraphDB的问题 [英] Questions about Cloud + GraphDB

问题描述

我正在一个项目上，我需要一个在云中的三层存储数据库，该数据库支持SPARQL查询.

I'm working on a project and i need a triple-store database in cloud, which support SPARQL queries.

1. GraphDB看起来不错，并且可以在我的台式计算机(localhost)上正常工作.但是，当我尝试在云中使用它( CloudDB )时，REST要求不起作用.

1. GraphDB looks good and works fine in my desktop computer (localhost). But, when I try to use it in the cloud (CloudDB), REST requisitions doesn't work.

问题:我正在尝试通过curl -X GET --header 'Accept: application/sparql-results+xml'使用REST查询我的存储库.

Problem: I'm trying to query my repository using REST, by curl -X GET --header 'Accept: application/sparql-results+xml'.

存储库ID:hermesiot

查询: select * where {?s ?p ?o .} limit 100

结果:

响应码:404

响应正文:{"message":"Database not found."}

如何在云解决方案(例如Azure或其他免费解决方案)中部署 GraphDB?

How to deploy GraphDB in cloud solutions, like Azure or another free solutions?

非常感谢:)

推荐答案

根据

According to the official example, your query should be of this kind:

 curl --header 'Accept: application/sparql-results+xml' \
      --data "query=SELECT+*+{?s+?p+?o.}" \
      --user s472kd733007:bhrfk1aa8o0qlj7 \
      'https://rdf.s4.ontotext.com/4032537848/wikidata/repositories/fast'

但是，上面的查询对我不起作用，而下面的查询却对我有用:

However, the query above does not work for me, whereas the query below does:

 curl --header 'Accept: application/sparql-results+xml' \
      --data "query=SELECT+*+{?s+?p+?o.}" \
      --user s472kd733007:bhrfk1aa8o0qlj7 \
      'http://awseb-e-m-awsebloa-11laimnu18r2i-2106042490.eu-west-1.elb.amazonaws.com/4032537848/wikidata/repositories/fast'

在上面的查询中:

• s472kd733007-API密钥，
• bhrfk1aa8o0qlj7-API密钥机密
• 4032537848 —用户ID
• wikidata —数据库名称，
• fast-存储库ID，
• http://awseb-e-m-awsebloa-...eu-west-1.elb.amazonaws.com — AWS实例地址.

• s472kd733007 — API key,
• bhrfk1aa8o0qlj7— API key secret,
• 4032537848 — user id
• wikidata — database name,
• fast — repository id,
• http://awseb-e-m-awsebloa-...eu-west-1.elb.amazonaws.com — AWS instance address.

访问仪表板中的标签，以获得这些参数的适用值.

Visit tabs in your dashboard in order to obtain applicable values of these parameters.

关于更新查询，请参阅e. G. 此答案.您的查询应为:

As for update queries, see e. g. this answer. Your query should be:

curl --header 'Accept: application/sparql-results+xml' \
      --data "update=INSERT+DATA+{owl:Nothing+owl:Nothing+owl:Nothing}" \
      --user s472kd733007:bhrfk1aa8o0qlj7 \
      'http://awseb-e-m-awsebloa-11laimnu18r2i-2106042490.eu-west-1.elb.amazonaws.com/4032537848/wikidata/repositories/fast/statements'

请注意，此请求中的端点地址不同.

Please note that endpoint address in this request is different.

这篇关于关于Cloud + GraphDB的问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！