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Project:SPARQL/examples: Difference between revisions
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= Federated queries = | |||
<SPARQL tryit="1"> | <SPARQL tryit="1"> | ||
PREFIX wb: <https://metabase.wikibase.cloud/entity/> | PREFIX wb: <https://metabase.wikibase.cloud/entity/> | ||
Revision as of 14:41, 24 April 2023
Federated queries
PREFIX wb: <https://metabase.wikibase.cloud/entity/>
PREFIX wbt: <https://metabase.wikibase.cloud/prop/direct/>
SELECT ?item ?itemLabel ?same_wikidata ?wikidata_iri ?url ?twitter ?instagram
WHERE
{
?item wbt:P5 wb:Q13 .
?item wbt:P1 ?same_wikidata.
BIND(URI(concat("http://www.wikidata.org/entity/",?same_wikidata)) AS ?wikidata_iri)
SERVICE <https://query.wikidata.org/sparql> {
OPTIONAL {?wikidata_iri wdt:P856 ?url.}
OPTIONAL {?wikidata_iri wdt:P2002 ?twitter.}
OPTIONAL {?wikidata_iri wdt:P2003 ?instagram.}
}
SERVICE wikibase:label { bd:serviceParam wikibase:language "sv,en". }
}