query-1650a69edd8087f7f1472b7a500c403d

PropertiesCOVIDWHO ID (P8150)publication date (P577)

Use at

https://query.wikidata.org/sparql

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT DISTINCT ?item ?itemLabel ?pdate
{
  ?item wdt:P8150 ?covidwho .
  OPTIONAL { ?item wdt:P577 ?pdate }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" } .
}

Query found at

https://www.wikidata.org/wiki/Wikidata:WikiProject_COVID-19/Queries

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v2("?covidwho") v1("?item"):::projected v3("?pdate"):::projected c4(["bd:serviceParam"]):::iri c6(["en"]):::literal v1 --"wdt:P8150"--> v2 subgraph optional0["(optional)"] style optional0 fill:#bbf,stroke-dasharray: 5 5; v1 -."wdt:P577".-> v3 end subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c4 --"wikibase:language"--> c6 end