Hi all,
I don't see my Monday post in the list archives, so I can't amend it.
I am attempting to bring a wikidata property, if present, into query results on my
wikibase.cloud instance, but am getting nothing.
I have managed to create what I think is the simplest code to demonstrate my problem.
The below query (
https://tinyurl.com/2f8wzeoj ) executes without error.
Am I missing something, or can we not use Wikidata as a SERVICE?
Thanks for any insight you may have!
Michael Lindsey
UC Berkeley School of Law
PREFIX ira:<https://ir-authorities.wikibase.cloud/entity/>
PREFIX irp:<https://ir-authorities.wikibase.cloud/prop/direct/>
PREFIX
wdt:<http://www.wikidata.org/prop/direct/>
SELECT ?person ?wikidataQNumber ?country
WHERE {
?person irp:P20 ira:Q174; # is a human
irp:P2 ?wikidataQNumber. # wikidata identifier
OPTIONAL {
SERVICE <https://query.wikidata.org/sparql> {
?wikidataQNumber wdt:P27 ?country.
}
}
}