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Querying: Difference between revisions
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Declare these namespaces at the start of every query: | Declare these namespaces at the start of every query: | ||
PREFIX | PREFIX og: <https://ottgaz.org/entity/> | ||
PREFIX | PREFIX ogt: <https://ottgaz.org/prop/direct/> | ||
== Sample queries == | == Sample queries == | ||
=== Label === | === Label === | ||
All items that are vilayets, as well as their English language label. [https://tinyurl.com/ | All items that are vilayets, as well as their English language label. [https://tinyurl.com/2pren5e2 run] | ||
SELECT ?vilayet ?vilayetLabel | SELECT ?vilayet ?vilayetLabel | ||
WHERE | WHERE | ||
{ | { | ||
?vilayet | ?vilayet ogt:P6 og:Q5 . | ||
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" } | SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" } | ||
} | } | ||
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== Federated query with Wikidata == | == Federated query with Wikidata == | ||
For every sanjak in Ottgaz, this query fetches the vilayet or eyalet to which Wikidata says it belongs. Thanks to Lucas Werkmeister for help. [https://tinyurl.com/ | For every sanjak in Ottgaz, this query fetches the vilayet or eyalet to which Wikidata says it belongs. Thanks to Lucas Werkmeister for help. [https://tinyurl.com/2ehssccv run] | ||
PREFIX | PREFIX og: <https://ottgaz.org/entity/> | ||
PREFIX | PREFIX ogt: <https://ottgaz.org/prop/direct/> | ||
PREFIX | PREFIX wd: <http://www.wikidata.org/entity/> | ||
PREFIX | PREFIX wdt: <http://www.wikidata.org/prop/direct/> | ||
SELECT ?sancak ?sancakLabel ?vilayet ?vilayetLabel | SELECT ?sancak ?sancakLabel ?vilayet ?vilayetLabel | ||
WHERE { | WHERE { | ||
?sancak | ?sancak ogt:P6 og:Q4 . # item must be a sanjak | ||
?sancak | ?sancak ogt:P4 ?c . # finds reference URL to wikidata | ||
BIND(IRI(REPLACE(REPLACE(REPLACE(STR(?c), "Property:", ""), "/wiki/", "/entity/"), "https://", "http://")) AS ?wd_c) # produces proper URL for query form | BIND(IRI(REPLACE(REPLACE(REPLACE(STR(?c), "Property:", ""), "/wiki/", "/entity/"), "https://", "http://")) AS ?wd_c) # produces proper URL for query form | ||
SERVICE <https://query.wikidata.org/sparql> { | SERVICE <https://query.wikidata.org/sparql> { | ||
?wd_c | ?wd_c wdt:P131 ?vilayet . # finds containing vilayet in Wikidata | ||
SERVICE wikibase:label { | SERVICE wikibase:label { | ||
bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". | bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". | ||