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DS Catalog:SPARQL Query Service/example queries: Difference between revisions
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DS Catalog:SPARQL Query Service/example queries (view source)
Revision as of 22:47, 29 January 2024
, 9 months ago→Unenriched Strings Generator
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==Unenriched Strings Generator== | ==Unenriched Strings Generator== | ||
This query generates a list of string values of a particular type of ''as recorded'' data occurring in a DS Record which have not be qualified by an authority value (i.e., reconciled to its linked data equivalent in a Linked Open Vocabulary or Authority). | This query generates a list of string values of a particular type of ''as recorded'' data occurring in a DS Record which have not be qualified by an authority value (i.e., reconciled to its linked data equivalent in a Linked Open Vocabulary or Authority). | ||
<syntaxhighlight lang="SPARQL"> | |||
SELECT ?record ?recordLabel ?string ?authority ?authorityLabel #?roleLabel # (un-comment roleLabel variable when querying name data to get role information) | |||
# declared variables give a link to a record, the label of the record, a link to the authority record, and a label for the the authority record | |||
WHERE { | |||
?record p:P14 ?stringStatement . | |||
# identifies records with statements with corresponding property (change P-value for as recorded value to be queried) | |||
?stringStatement ps:P14 ?string . | |||
# identifies statements that have strings with corresponding property (change P-value for as recorded value to be queried) | |||
#FILTER NOT EXISTS { ?stringStatement pq:P17 ?authority . } | |||
# identifies those statements which have not been enriched with authority values (change P-value for authority file value to be queried) | |||
OPTIONAL { ?stringStatement pq:P15 ?role . } | |||
# only used for name data, un-comment optional clause when querying name data | |||
SERVICE wikibase:label { | |||
bd:serviceParam wikibase:language "en" . | |||
} | |||
} | |||
ORDER BY ASC (?string) | |||
# this sorts the results alphabetically by string values | |||
<syntaxhighlight> | |||