sparql-examples

A set of SPARQL examples that are used in different TGX resources

View the Project on GitHub BiGCAT-UM/sparql-examples

138

rq turtle/ttl

Printer aspect: works

Use at

PREFIX bd: <http://www.bigdata.com/rdf#>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
# List of printed works by date

PREFIX target: <http://www.wikidata.org/entity/Q85200459>

SELECT
  ?date
  ?work ?workLabel (CONCAT("/work/", SUBSTR(STR(?work), 32)) AS ?workUrl)
  ?example_author ?example_authorLabel (CONCAT("/author/", SUBSTR(STR(?example_author), 32)) AS ?example_authorUrl)
WHERE {
  {
    SELECT
      (MIN(?date_) AS ?date)
      ?work
      (SAMPLE(?author) AS ?example_author)
    WHERE {
      ?work wdt:P872 target: .
      OPTIONAL { ?work wdt:P577 ?datetime . BIND(xsd:date(?datetime) AS ?date_) }
      OPTIONAL { ?work wdt:P50 ?author }
    }
    GROUP BY ?work
  }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],mul,en" . }
}
ORDER BY DESC(?date)
LIMIT 1000

graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
  v5("?author")
  v6("?date"):::projected 
  v4("?date_")
  v3("?datetime")
  v6("?example_author"):::projected 
  v8("?example_authorUrl")
  v2("?work"):::projected 
  v7("?workUrl")
  c6([http://www.bigdata.com/rdf#serviceParam]):::iri 
  c2([http://www.wikidata.org/entity/Q85200459]):::iri 
  c8(["#91;AUTO_LANGUAGE#93;,mul,en"]):::literal 
  v2 --"p:direct/P872"-->  c2
  subgraph optional0["(optional)"]
  style optional0 fill:#bbf,stroke-dasharray: 5 5;
    v2 -."p:direct/P577".->  v3
    bind0[/"http://www.w3.org/2001/XMLSchema#date(?datetime)"/]
    v3 --o bind0
    bind0 --as--o v4
  end
  subgraph optional1["(optional)"]
  style optional1 fill:#bbf,stroke-dasharray: 5 5;
    v2 -."p:direct/P50".->  v5
  end
  bind3[/"min(?date_)"/]
  v4 --o bind3
  bind3 --as--o v6
  bind4[/"sample(?author)"/]
  v5 --o bind4
  bind4 --as--o v6
  subgraph s1["http://wikiba.se/ontology#label"]
    style s1 stroke-width:4px;
    c6 --"wikibase:language"-->  c8
  end
  bind5[/"concat('/work/',substring(str(?work),'32^^xsd:integer'))"/]
  v2 --o bind5
  bind5 --as--o v7
  bind6[/"concat('/author/',substring(str(?example_author),'32^^xsd:integer'))"/]
  v6 --o bind6
  bind6 --as--o v8