Sample queries: Difference between revisions
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== Instance count == | == Instance count == | ||
Revision as of 22:07, 10 November 2019
Instance count
To get an overview of what's in the BBP, the following query will return a count of all of the different instances, such as works, people, and places.
SELECT ?typeLabel (count(distinct ?x) as ?count)
WHERE
{
?x wdt:P8 ?type .
?type rdfs:label ?typeLabel.
FILTER((LANG(?typeLabel)) = "en")
}
group by ?type ?typeLabel
order by desc(?count)
Birthplaces
Map the birth places for everyone listed in the BBP, using coordinate data from Wikidata
PREFIX wd_1: <http://www.wikidata.org/entity/>
PREFIX wdt_1: <http://www.wikidata.org/prop/direct/>
SELECT distinct ?person ?personLabel ?pob ?pobLabel ?coords
WITH {
SELECT ?person WHERE {
?item wdt:P8 wd:Q3 .
?item wdt:P107 ?wid .
BIND(IRI(CONCAT('http://www.wikidata.org/entity/', ?wid)) AS ?person )
}
} AS %people
WHERE {
include %people
SERVICE <https://query.wikidata.org/sparql> {
?person wdt_1:P19 ?pob .
?pob wdt_1:P625 ?coords .
?person rdfs:label ?personLabel .
FILTER((LANG(?personLabel)) = "en")
?pob rdfs:label ?pobLabel .
FILTER((LANG(?pobLabel)) = "en")
}
}
Inscription Overview
SELECT ?item ?itemLabel ?inscriptionNote ?addresseeLabel ?formerOwnerLabel WHERE {
?item wdt:P52 ?inscriptionNote .
?item ?x ?statement .
?statement ps:P52 ?inscriptionNote ;
pq:P53 ?addressee .
OPTIONAL {?statement pq:P54 ?formerOwner}
SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
ORDER by ?recipient