query-296515ddbc7f22f8bfbfa3c7dfa0f172
deletion of "unknown" value in discovery statements ]reply[16:37, 17 April 2021 (UTC)) talk (Amadalvarez any information that we do not know of all of them ?. If so, let me know, elsewere, please accept deletion because of singular situation for this planet. To have this "no information" means complicate the systems that fetch them with a double validation. Thanks, --unknown: I agree that is unknown the date and author of discovery, same as thousand of astronomic objects or some other properties that are empty because are unknown by now. Are you going to fill with Infovarius@: I just want to have some completeness in a table like this:Amadalvarez@
Use at
- https://query.wikidata.org/sparql
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?item ?itemLabel ?date ?pionerLabel WHERE {
?item wdt:P31/wdt:P279* wd:Q13205267.
OPTIONAL {?item wdt:P575 ?date.}
OPTIONAL {?item wdt:P61 ?pioner.}
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Query found at
graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
v2("?date"):::projected
v1("?item"):::projected
v3("?pioner")
a1((" "))
c7(["bd:serviceParam"]):::iri
c9(["#91;AUTO_LANGUAGE#93;,en"]):::literal
c3(["wd:Q13205267"]):::iri
v1 --"wdt:P31"--> a1
a1 --"wdt:P279"--> c3
subgraph optional0["(optional)"]
style optional0 fill:#bbf,stroke-dasharray: 5 5;
v1 -."wdt:P575".-> v2
end
subgraph optional1["(optional)"]
style optional1 fill:#bbf,stroke-dasharray: 5 5;
v1 -."wdt:P61".-> v3
end
subgraph s1["http://wikiba.se/ontology#label"]
style s1 stroke-width:4px;
c7 --"wikibase:language"--> c9
end