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Project:SPARQL/examples: Difference between revisions
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→All items without a P12 (instance of) triple
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<sparql tryit="1"> | <sparql tryit="1"> | ||
#title:nearly all items without P12 (instance of) | #title:nearly all items without P12 (instance of) | ||
#NB: | #NB: the query will only find items that have at least one statement; this excludes a small number of Qs and a larger number (~35) of Ps. | ||
#see separate query to find items without any statements | #see separate query to find items without any statements | ||
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wikibase:statementProperty ?ps. | wikibase:statementProperty ?ps. | ||
# ?prop wikibase:propertyType wikibase:WikibaseItem. # limit to P & Q Items. not necessary; only the claim is needed. | # ?prop wikibase:propertyType wikibase:WikibaseItem. # limit to P & Q Items. not necessary; only the claim is needed. | ||
# weirdness: it still causes some things that are definitely WikibaseItem to be dropped and idk why. | |||
FILTER NOT EXISTS {?item bnwdt:P12 ?instance .} | FILTER NOT EXISTS {?item bnwdt:P12 ?instance .} | ||