通过QID获取属性? [英] Get properties by QID?

问题描述

我可以通过标签获取项目及其属性:

I can get item and its properties by label:

SELECT distinct ?item ?itemLabel ?itemDescription
(SAMPLE(?DR) as ?DR) (SAMPLE(?article)as ?article)
WHERE {?item wdt:P31 wd:Q5. 
?item ?label "Einstein"@en 
OPTIONAL{?item wdt:P569 ?DR .}
?article schema:about ?item .
?article schema:inLanguage "en" .
?article schema:isPartOf <https://en.wikipedia.org/>.
OPTIONAL{?item wdt:P570 ?RIP .}
OPTIONAL{?item wdt:P18 ?image .}
SERVICE wikibase:label
{ bd:serviceParam wikibase:language "en". }}
GROUP BY ?item ?itemLabel ?itemDescription

请参见如何使用QID代替标签来做同样的事情?

How can I do the same using QID instead label?

推荐答案

使用URI代替变量?item将基于实体Albert Einstein获取信息:

Using the URI instead of the variable ?item will get the information based on the entity Albert Einstein:

PREFIX  schema: <http://schema.org/>
PREFIX  bd:   <http://www.bigdata.com/rdf#>
PREFIX  wdt:  <http://www.wikidata.org/prop/direct/>
PREFIX  wikibase: <http://wikiba.se/ontology#>

SELECT DISTINCT  ?item ?itemLabel ?itemDescription (SAMPLE(?DR) AS ?DRSample) (SAMPLE(?article) AS ?articleSample)
WHERE
  { ?article  schema:about       ?item ;
              schema:inLanguage  "en" ;
              schema:isPartOf    <https://en.wikipedia.org/>
    FILTER ( ?item = <http://www.wikidata.org/entity/Q937> )
    OPTIONAL
      { ?item  wdt:P569  ?DR }
    OPTIONAL
      { ?item  wdt:P570  ?RIP }
    OPTIONAL
      { ?item  wdt:P18  ?image }
    SERVICE wikibase:label
      { bd:serviceParam
                  wikibase:language  "en"
      }
  }
GROUP BY ?item ?itemLabel ?itemDescription

这篇关于通过QID获取属性?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！