query-f3d23e2a6820816c7af684351d5c3117
WD subject codes which have no match in PM20 endpoint
Use at
- https://query.wikidata.org/sparql
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
PREFIX bd: <http://www.bigdata.com/rdf#>
select distinct ?item ?itemLabel ?subjectCode ?notation
where {
?item wdt:P8484 ?subjectCode .
bind(replace(?subjectCode, '_', ' ') as ?notation)
optional {
service <http://zbw.eu/beta/sparql/pm20/query> {
select distinct ?notation ?subject
where {
# it is not reqiered that according subject category has folders!
# (may be empty level in the hierarchy)
?subject skos:notation ?notation .
}
}
}
filter(!bound(?subject))
#
SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
order by ?notation
Query found at
graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
v3("?item"):::projected
v5("?notation"):::projected
v2("?subject")
v4("?subjectCode"):::projected
c5(["bd:serviceParam"]):::iri
c7(["en"]):::literal
f0[["not bound(?subject)"]]
f0 --> v2
v3 --"wdt:P8484"--> v4
bind1[/"replace(?subjectCode,'_',' ')"/]
v4 --o bind1
bind1 --as--o v5
subgraph optional0["(optional)"]
style optional0 fill:#bbf,stroke-dasharray: 5 5;
subgraph s1["http://zbw.eu/beta/sparql/pm20/query"]
style s1 stroke-width:4px;
v2 -."skos:notation".-> v5
end
end
subgraph s2["http://wikiba.se/ontology#label"]
style s2 stroke-width:4px;
c5 --"wikibase:language"--> c7
end