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Querying: Difference between revisions
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→Sample queries: kaza count per year
(→Sample queries: kaza count per year) |
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} | } | ||
ORDER BY desc(?duration) | ORDER BY desc(?duration) | ||
=== Number of kazas created each year === | |||
In each year, how many kazas were inaugurated? [https://tinyurl.com/2z9gjrch run] | |||
SELECT ?year (COUNT (DISTINCT ?kaza) AS ?count) | |||
WHERE | |||
{ | |||
?kaza ogt:P15 og:Q3. | |||
?kaza ogp:P15 ?statement. | |||
?statement ogps:P15 og:Q3. | |||
?statement ogpq:P7 ?starttime. | |||
bind(year(?starttime) as ?year) | |||
} | |||
GROUP BY ?year | |||
ORDER BY desc(?count) | |||
== Federated query with Wikidata == | == Federated query with Wikidata == | ||