SPARQL Arithmetic Examples Collection

This guide contains Virtuoso SPARQL Arithmetic Examples Collection of queries which you can run against any SPARQL endpoint.

Example Find death age of musicians


SELECT ?s ?genre ?died ?born 
       ( bif:datediff( 'year', xsd:dateTime( str(?born) ), xsd:dateTime( str(?died) ) ) ) AS ?age
WHERE 
  { 
    {
      SELECT DISTINCT ?s ?genre ?died ?born 
      FROM <http://dbpedia.org> 
      WHERE 
        { 
          ?s a <http://dbpedia.org/ontology/MusicalArtist> ;
                <http://dbpedia.org/ontology/genre> ?genre ;
             <http://dbpedia.org/ontology/deathDate> ?died ;
             <http://dbpedia.org/ontology/birthDate> ?born .
        }
      LIMIT 20 
    }
  }

Example Find death age of musicians with validating the born and died dates


SELECT ?person ?genre ?died ?born
       ( 
         if 
           (
             ( datatype (?born) in (xsd:dateTime, xsd:date) ) 
             and
             ( datatype (?died) in (xsd:dateTime, xsd:date) ),
             bif:datediff( 'year', xsd:dateTime( str(?born) ), xsd:dateTime( str(?died) ) ),
             "error" 
           ) 
       ) AS ?age
WHERE 
  { 
    {
      SELECT DISTINCT ?person ?genre ?died ?born 
      FROM <http://dbpedia.org> 
      WHERE 
        { 
          ?person a <http://dbpedia.org/ontology/MusicalArtist> ;
                     <http://dbpedia.org/ontology/genre> ?genre ;
                  <http://dbpedia.org/ontology/deathDate> ?died ;
                  <http://dbpedia.org/ontology/birthDate> ?born .
        }      
      ORDER BY DESC ( <LONG::IRI_RANK> (?person) ) 
      LIMIT 10
    }
  }

Example Find death age of musicians with calculated rank based on person


SELECT DISTINCT ?person ?plabel ?genre ?glabel ?died 
      ?born ( <LONG::IRI_RANK> (?person) ) as ?rank
      ( 
        if 
          (
            ( datatype (?born) in (xsd:dateTime, xsd:date) ) 
            and
            ( datatype (?died) in (xsd:dateTime, xsd:date) ),
            bif:datediff( 'year', xsd:dateTime( str(?born) ), xsd:dateTime( str(?died) ) ),
            "error" 
          ) 
       ) AS ?age
WHERE 
  { 
    {
      SELECT DISTINCT ?person ?plabel ?genre ?glabel ?died ?born 
      FROM <http://dbpedia.org> 
      WHERE 
        { 
          ?person a <http://dbpedia.org/ontology/MusicalArtist> ;
                     <http://dbpedia.org/ontology/genre> ?genre ;
                  <http://dbpedia.org/ontology/deathDate> ?died ;
                                             rdfs:label ?plabel ;
                  <http://dbpedia.org/ontology/birthDate> ?born .
                                      ?genre rdfs:label ?glabel .
          FILTER (lang(?plabel) = "en")
          FILTER (lang(?glabel) = "en")
        }
      ORDER BY DESC ( <LONG::IRI_RANK> (?person) ) 
      LIMIT 10
    }
  }

Example Find average death age of musicians by genre


SELECT ?genre, (avg(?age)) AS ?avg
WHERE 
  {
    {
      SELECT distinct ?genre ?person (bif:datediff( 'year', xsd:dateTime( str(?born) ), xsd:dateTime( str(?died)))) as ?age
      WHERE 
        { 
          {
            SELECT distinct ?person ?genre ?died ?born 
            FROM <http://dbpedia.org> 
            WHERE 
              { 
                ?person a <http://dbpedia.org/ontology/MusicalArtist> ;
                           <http://dbpedia.org/ontology/genre> ?genre ;
                        <http://dbpedia.org/ontology/deathDate> ?died ;
                        <http://dbpedia.org/ontology/birthDate> ?born .
                FILTER ( datatype (?born) IN (xsd:dateTime, xsd:date) ) 
                FILTER ( datatype (?died) IN (xsd:dateTime, xsd:date) ) 
      
              }      
          }
        }
    }
  }
GROUP BY (?genre)
LIMIT 10

Example Show people data with Entity Rank, Grouping and Pretty Labels


SELECT DISTINCT ?person str(?plabel) ?genre str(?glabel) 
       ?died ?born ( <LONG::IRI_RANK> (?person) ) as ?rank
       ( 
         if 
           (
             ( datatype (?born) in (xsd:dateTime, xsd:date) )
             and
             ( datatype (?died) in (xsd:dateTime, xsd:date) ),
             bif:datediff('year',xsd:dateTime(str(?born)),xsd:dateTime(str(?died))),
             "error" 
           ) 
       ) AS ?age
WHERE 
  { 
    {
      SELECT DISTINCT ?person ?plabel ?genre ?glabel ?died ?born 
      FROM <http://dbpedia.org> 
      WHERE 
        { 
          ?person a <http://dbpedia.org/ontology/MusicalArtist> ;
                     <http://dbpedia.org/ontology/genre> ?genre ;
                  <http://dbpedia.org/ontology/deathDate> ?died ;
                                             rdfs:label ?plabel ;
                  <http://dbpedia.org/ontology/birthDate> ?born .
          ?genre rdfs:label ?glabel .
          FILTER ( lang(?plabel) = "en" )
          FILTER ( lang(?glabel) = "en" )
        }
      ORDER BY DESC ( <LONG::IRI_RANK> (?person) ) 
      LIMIT 10
    }
  }

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