query-b8b51e2529cec266d42f1339ba23638c

rq turtle/ttl

Countings airports have on their soil + their most up to date population of the country. Idem but with a date set : eg in year 2000, these numbers were x airports for y population. currently countries, of how many civilian airports they currentHello, I'd like a count per all 21:38, 29 January 2020 (UTC)) talk (BouzinacThanks ! 01:44, 30 January 2020 (UTC)) talk (Dipsacus fullonum are in use for airports, so it tests that neither are defined. It relays on the best current population number having preferred rang. I wouldn't count too much on the accuracy of either airport count or population. --(P576)dissolved, abolished or demolished date and (P582)end time Here is for the first part – current airports and population. It seems both

Use at

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 ?country ?countryLabel ?no_of_airports ?population
WHERE
{
  {
    SELECT ?country (COUNT(?airport) AS ?no_of_airports)
    WHERE
    {
      ?airport wdt:P17 ?country.
      ?airport wdt:P31/wdt:P279* wd:Q1248784.
      OPTIONAL { ?airport (wdt:P582|wdt:P576) ?endtime. }
      FILTER(!BOUND(?endtime))
    }
    GROUP BY ?country
  }
  ?country wdt:P1082 ?population.
  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("?airport") v3("?country"):::projected v1("?endtime") v4("?no_of_airports"):::projected v5("?population"):::projected a1((" ")) c4(["wd:Q1248784"]):::iri c9(["bd:serviceParam"]):::iri c11(["#91;AUTO_LANGUAGE#93;,en"]):::literal f0[["not bound(?endtime)"]] f0 --> v1 v2 --"wdt:P17"--> v3 v2 --"wdt:P31"--> a1 a1 --"wdt:P279"--> c4 subgraph optional0["(optional)"] style optional0 fill:#bbf,stroke-dasharray: 5 5; subgraph union0[" Union "] subgraph union0l[" "] style union0l fill:#abf,stroke-dasharray: 3 3; v2 -."wdt:P576".-> v1 end subgraph union0r[" "] style union0r fill:#abf,stroke-dasharray: 3 3; v2 --"wdt:P582"--> v1 end union0r <== or ==> union0l end end bind2[/"count(?airport)"/] v2 --o bind2 bind2 --as--o v4 v3 --"wdt:P1082"--> v5 subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c9 --"wikibase:language"--> c11 end