DS Catalog:SPARQL Query Service/example queries: Difference between revisions

DS Catalog:SPARQL Query Service/example queries (view source)

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 ===Places===
+<syntaxhighlight lang="SPARQL">
+# prefixes
+PREFIX wd: <https://catalog.digital-scriptorium.org/entity/>
+PREFIX wds: <https://catalog.digital-scriptorium.org/entity/statement/>
+PREFIX wdv: <https://catalog.digital-scriptorium.org/value/>
+PREFIX wdt: <https://catalog.digital-scriptorium.org/prop/direct/>
+PREFIX p: <https://catalog.digital-scriptorium.org/prop/>
+PREFIX ps: <https://catalog.digital-scriptorium.org/prop/statement/>
+PREFIX pq: <https://catalog.digital-scriptorium.org/prop/qualifier/>
+PREFIX wikibase: <http://wikiba.se/ontology#>
+PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
+SELECT ?authorityValue ?authorityValueLabel ?authorityTypeLabel ?externalID
+WHERE {
+BIND (wd:Q16 as ?authorityType) # place authority
+?authorityValue wdt:P16 ?authorityType .
+    # find authority records by authority type specified above
+OPTIONAL { ?authorityValue wdt:P44 ?externalID . }
+    # find external IDs matched to authority value
+    SERVICE wikibase:label {
+    bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" .
+      # allows English language labels to be returned for Wikibase items
+  }
+}
+ORDER BY ASC (?authorityValueLabel)
+</syntaxhighlight>
 ===Standard Titles===