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Project:SPARQL/examples: Difference between revisions
From Beyond Notability
→All properties in use in the wikibase with property type, label and description (if present)
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<sparql tryit="1"> | <sparql tryit="1"> | ||
# query for information about properties that are being used in the wikibase | |||
## | ## fyi: not actually necessary to declare these properties | ||
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> | PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> | ||
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> | PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> | ||
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?property | ?property | ||
?propertyType | ?propertyType | ||
?propertyLabel | ?propertyLabel ?propertyAltLabel | ||
?propertyDescription | ?propertyDescription | ||
WHERE { | WHERE { | ||
?property a wikibase:Property ; | ?property a wikibase:Property ; | ||
rdfs:label ?propertyLabel ; | rdfs:label ?propertyLabel ; # label | ||
wikibase:propertyType ?propertyType . | wikibase:propertyType ?propertyType . # datatype | ||
# add alternative labels | # add alternative labels (though there are few for properties) | ||
OPTIONAL { ?property skos:altLabel ?propertyAltLabel . } | |||
# add description if present | |||
OPTIONAL { | OPTIONAL { | ||
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en-gb,en". | SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en-gb,en". | ||
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} | } | ||
FILTER(LANG(?propertyLabel) = 'en') | FILTER(LANG(?propertyLabel) = 'en-gb') | ||
# fix label language dups; but Q why doesn't SERVICE work? | # fix label language dups; but Q why doesn't SERVICE work? | ||
# A: https://en.wikibooks.org/wiki/SPARQL/FILTER#FILTER_on_values_in_Labels | # A: https://en.wikibooks.org/wiki/SPARQL/FILTER#FILTER_on_values_in_Labels | ||
# nb a few objects found with en-gb label missing | |||
} | } | ||
