User:Realworldobject/QueryExamples

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Query Examples

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Top 10 female given names (ranked by the number of language Wikipedia pages)

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The following query uses these:

  • Properties: instance of (P31)  View with Reasonator View with SQID
    # Top 10 female given names (ranked by the number of language Wikipedia pages)
    SELECT ?femaleName ?femaleNameLabel ?sitelinks
    WHERE {
      ?femaleName wdt:P31 wd:Q11879590 ;  # female given name
                  wikibase:sitelinks ?sitelinks .
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    }
    ORDER BY DESC(?sitelinks)
    LIMIT 10
    

All works by a given author

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The following query uses these:

  • Properties: author (P50)  View with Reasonator View with SQID, publication date (P577)  View with Reasonator View with SQID, language of work or name (P407)  View with Reasonator View with SQID, title (P1476)  View with Reasonator View with SQID, instance of (P31)  View with Reasonator View with SQID
    # items authored by Ernest Hemingway (Q23434)
    SELECT ?work ?workLabel ?title ?languageLabel ?pubdate (GROUP_CONCAT(?typeLabel;SEPARATOR=", ") AS ?types)
    WHERE {
      ?work wdt:P50 wd:Q23434. 
      OPTIONAL {?work wdt:P577 ?pubdate}
      OPTIONAL {?work wdt:P407 ?language}
      OPTIONAL {?work wdt:P1476 ?title}
      OPTIONAL {
        ?work wdt:P31 ?type .
        ?type rdfs:label ?typeLabel .
        FILTER(LANG(?typeLabel)="en")
      }
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    }
    GROUP BY ?work ?workLabel ?title ?pubdate ?languageLabel
    ORDER BY ?workLabel
    
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The following query uses these:

  • Properties: broader concept (P4900)  View with Reasonator View with SQID
    SELECT DISTINCT ?item ?itemLabel ?p ?propLabel ?broaderItem ?broaderItemLabel ?numBroaderQuals
    WHERE
    {
      {
        SELECT ?item (COUNT(DISTINCT ?stmt) AS ?numBroaderQuals)
        WHERE {
          ?item ?p ?stmt .
          ?stmt pq:P4900 ?broaderItem .
          ?prop wikibase:claim ?p .
        }
        GROUP BY ?item
        ORDER BY DESC(?numBroaderQuals)
      }
      ?item ?p ?stmt .
      ?stmt pq:P4900 ?broaderItem .
      ?prop wikibase:claim ?p .
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    }
    ORDER BY DESC(?numBroaderQuals) ?item
    

Harry Potter books that were made into films

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The following query uses these:

  • Properties: instance of (P31)  View with Reasonator View with SQID, subclass of (P279)  View with Reasonator View with SQID, based on (P144)  View with Reasonator View with SQID, publication date (P577)  View with Reasonator View with SQID, part of the series (P179)  View with Reasonator View with SQID
    SELECT DISTINCT ?novel ?novelLabel (YEAR(?bookPubDate) AS ?novelYear) ?film ?filmLabel (YEAR(?filmPubDate) AS ?filmYear) 
    WHERE {
      ?film wdt:P31/wdt:P279* wd:Q11424;
            wdt:P144 ?novel; 
            wdt:P577 ?filmPubDate .
      ?novel wdt:P31/wdt:P279* wd:Q571; 
             wdt:P577 ?bookPubDate ;
             wdt:P179 wd:Q8337 .
      SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
    }
    ORDER BY ?bookYear ?filmYear
    

Constraint violation counts

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The following query uses these:

  • Properties: property constraint (P2302)  View with Reasonator View with SQID
    # Constraints with violations
    SELECT ?propLabel ?constraintLabel ?numViolations
    WHERE {
      {
        SELECT DISTINCT ?prop ?constraint (COUNT(?stmt) AS ?numViolations)
        WHERE 
        {
          ?stmt wikibase:hasViolationForConstraint ?constraintStmt .
          ?prop p:P2302 ?constraintStmt .
          ?constraintStmt ps:P2302 ?constraint .
        }
        GROUP BY ?prop ?constraint
      }
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    }
    ORDER BY DESC(?numViolations)
    

Items with multiple VIAF identifiers

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The following query uses these:

  • Properties: VIAF ID (P214)  View with Reasonator View with SQID
    # VIAF single value constraint violation
    SELECT ?item ?itemLabel (GROUP_CONCAT(?viafID;SEPARATOR=" | ") AS ?viafIDs)
    WHERE {
      ?item p:P214 [
        wikibase:hasViolationForConstraint wds:P214-F98CC03E-A180-4F15-B3C9-5C6097F40A57;
                                                       psn:P214 ?viafID
      ] .
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    }
    GROUP BY ?item ?itemLabel 
    ORDER BY DESC(COUNT(DISTINCT ?viafID))
    

Distinct Values constraint violations

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The following query uses these:

  • Properties: VIAF ID (P214)  View with Reasonator View with SQID
    #Violations of the distinct value constraint for VIAF ids
    SELECT ?viafID (COUNT(DISTINCT ?item) AS ?itemCount) (GROUP_CONCAT(DISTINCT ?item; SEPARATOR=" | ") AS ?wdIDs) (GROUP_CONCAT(DISTINCT ?itemLabel;SEPARATOR=" | ") AS ?labels)
    WHERE {
      SELECT ?viafID ?item ?itemLabel ?itemDescription ?sitelinks
      WHERE 
      {
        [] p:P214 [
          wikibase:hasViolationForConstraint wds:P214-B36B72ED-7C33-4CF1-A4E9-55366E0B6501 ;
                                             ps:P214 ?viafID 
        ].
        OPTIONAL {?item wdt:P214 ?viafID}
        OPTIONAL {?item p:P214 [ps:P214 ?viafID]}
        SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en,de". ?item rdfs:label ?itemLabel}
      }
    }
    GROUP BY ?viafID
    HAVING (?itemCount > 1)
    ORDER BY DESC(?itemCount)
    

Allowed qualifiers on External ID claims

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The following query uses these:

  • Properties: property constraint (P2302)  View with Reasonator View with SQID, property (P2306)  View with Reasonator View with SQID
    SELECT DISTINCT ?allowedQualifier ?allowedQualifierLabel (COUNT(?prop) AS ?numOccurs)
    WHERE {
      ?prop wikibase:propertyType wikibase:ExternalId ;
            p:P2302 [
              ps:P2302 wd:Q21510851;
              pq:P2306 ?allowedQualifier
            ]
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    }
    GROUP BY ?allowedQualifier ?allowedQualifierLabel
    ORDER BY DESC(?numOccurs)
    

External IDs that allow a Mapping Relation Type qualifier

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The following query uses these:

  • Properties: property constraint (P2302)  View with Reasonator View with SQID, property (P2306)  View with Reasonator View with SQID
    SELECT DISTINCT ?prop ?propLabel
    WHERE {
      ?prop wikibase:propertyType wikibase:ExternalId ;
            p:P2302 [
              ps:P2302 wd:Q21510851;
              pq:P2306 wd:P4390
            ]
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    }
    

Mapping Relationship qualifiers that are used on External IDs

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The following query uses these:

  • Properties: property constraint (P2302)  View with Reasonator View with SQID, property (P2306)  View with Reasonator View with SQID, mapping relation type (P4390)  View with Reasonator View with SQID
    SELECT DISTINCT ?propLabel ?mappingRelationType ?mappingRelationTypeLabel (COUNT(?p) AS ?numOccurs)
    WHERE {
      ?prop wikibase:propertyType wikibase:ExternalId ;
            p:P2302 [
              ps:P2302 wd:Q21510851;
              pq:P2306 wd:P4390
            ] ;
            wikibase:claim ?p .
      ?item ?p [
        pq:P4390 ?mappingRelationType 
      ]
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    }
    GROUP BY ?propLabel ?mappingRelationType ?mappingRelationTypeLabel
    ORDER BY DESC(?numOccurs)
    

Bibliograph.net mappings

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The following query uses these:

  • Properties: equivalent class (P1709)  View with Reasonator View with SQID, equivalent property (P1628)  View with Reasonator View with SQID
    PREFIX bgn: <http://bibliograph.net/>
    SELECT ?bgn ?class ?classLabel ?classDescription ?property ?propertyLabel ?propertyDescription
    WHERE {
      {
        ?class wdt:P1709 ?bgn .
        FILTER(STRSTARTS(STR(?bgn), STR(bgn:)))
      }
      UNION
      {
        ?property wdt:P1628 ?bgn .
        FILTER(STRSTARTS(STR(?bgn), STR(bgn:)))
      }
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    }
    ORDER BY ?bgn
    

Bibliograph.net reproduction query

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The following query uses these:

  • Properties: equivalent class (P1709)  View with Reasonator View with SQID, equivalent property (P1628)  View with Reasonator View with SQID
    PREFIX bgn: <http://bibliograph.net/>
    PREFIX schema: <http://schema.org/>
    CONSTRUCT {
      ?class
        a rdfs:Class ;
        rdfs:label ?label ;
        owl:equivalentClass ?item .
      ?property
        a rdf:Property ;
        rdfs:label ?label ;
        owl:equivalentProperty ?item .
      bgn:AudioBook a schema:BookFormatType ;
        rdfs:label "bgn:AudioBook"@en .
      bgn:CartographicMap a schema:MapCategoryType ;
        rdfs:label "bgn:CartographicMap"@en .
      bgn:LargePrintBook a schema:BookFormatType ;
        rdfs:label "bgn:LargePrintBook"@en .
      bgn:PrintBook a schema:BookFormatType ;
        rdfs:label "bgn:PrintBook"@en .
    } WHERE {
      {
        ?item wdt:P1709 ?class ;
        FILTER(STRSTARTS(STR(?class), STR(bgn:)))
        BIND(CONCAT('bgn:', STRAFTER(STR(?class), STR(bgn:))) AS ?label) 
      }
      UNION
      {
        ?item wdt:P1628 ?property .
        FILTER(STRSTARTS(STR(?property), STR(bgn:)))
        BIND(CONCAT('bgn:', STRAFTER(STR(?property), STR(bgn:))) AS ?label) 
      }
    }
    

Identifier overlap illustration

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The following query uses these: