query-51c00e66d1f2b8780f34253a2685a37c
11:49, 7 June 2017 (UTC) Talk SharkDIs this formed properly? It returns zero results, so I am not sure, since that could be for other reasons. Thanks. 11:51, 7 June 2017 (UTC) Talk SharkDAlso, I'm not sure if "blank" is the same as "undefined". In an earlier query I ran into an issue where the query behaved differently in the two cases.
Use at
- https://query.wikidata.org/sparql
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT ?game {
?game wdt:P31 wd:Q7889 .
OPTIONAL {
?game rdfs:label ?gameLabel.
FILTER(LANG(?gameLabel) = "en") .
}
FILTER(!BOUND(?gameLabel)) .
}
Query found at
graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
v2("?game"):::projected
v1("?gameLabel")
c3(["wd:Q7889"]):::iri
f0[["not bound(?gameLabel)"]]
f0 --> v1
v2 --"wdt:P31"--> c3
subgraph optional0["(optional)"]
style optional0 fill:#bbf,stroke-dasharray: 5 5;
v2 -."rdfs:label".-> v1
end