query-9fef23eead2cd9175aa6725b2d090b30
Chess players with DOB precisionI am trying to query all chessgames-people with dob precision "year" or less. This is what I could construct:
Use at
- https://query.wikidata.org/sparql
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX psv: <http://www.wikidata.org/prop/statement/value/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?item ?itemLabel ?birth WHERE {
?item wdt:P1665 [] .
MINUS {
?item p:P569/psv:P569 [
wikibase:timePrecision "11"^^xsd:integer ;
wikibase:timeValue ?birth ;
] ;
}
SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}
Query found at
graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
v2("?birth"):::projected
v1("?item"):::projected
a1((" "))
a3((" "))
a2((" "))
c3(["11^^xsd:integer"]):::literal
c8(["bd:serviceParam"]):::iri
c10(["en"]):::literal
v1 --"p:direct/P1665"--> a1
subgraph minus0["MINUS"]
style minus0 stroke-width:6px,fill:pink,stroke:red;
a2 --"wikibase:timePrecision"--> c3
a2 --"wikibase:timeValue"--> v2
v1 --"p:P569"--> a3
a3 --"p:statement/value/P569"--> a2
end
subgraph s1["http://wikiba.se/ontology#label"]
style s1 stroke-width:4px;
c8 --"wikibase:language"--> c10
end