query-922b05e921d02b32d79026aa7a68a99f
issues where not all items are returning with query-scholarly), which is stored within the references of the "part of" statements. P813 (retrieved date). Additionally, I want to retrieve the P361 ("part of"), using the property Q18477654 project (Wikidata item NeuroMatI am trying to create a SPARQL query that retrieves all items that are part of the after July 2013.. However, I am facing issues where not all items are returning their associated retrieved date, specially I'm unable to retrieve the P813 only retrieved dateIn the query, I am accessing the references associated with each "part of" statement to extract the . https://query-scholarly.wikidata.org/I'm work with Here is the current SPARQL query I am using:
Use at
- https://query.wikidata.org/sparql
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX prov: <http://www.w3.org/ns/prov#>
PREFIX pr: <http://www.wikidata.org/prop/reference/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?item ?itemLabel ?accessDate WHERE {
?item p:P361 ?statement. # Accesses the full statement that uses "part of
?statement ps:P361 wd:Q18477654. # Filters items that are part of NeuroMat
?statement prov:wasDerivedFrom ?reference. # Accesses the reference associated with the statement
reference pr:P813 ?accessDate. # Retrieves the "retrieved date" (P813) from the reference
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}