You can perform SPARQL queries using the form that appears below this text. Please visit the SPARQL Query language documentation for information of writing SPARQL queries.
You can use the following sample queries as a starting point to build your own, or to get to know the SPARQL query language.
PREFIX dc: <http://purl.org/dc/elements/1.1/> PREFIX skos: <http://www.w3.org/2004/02/skos/core#> SELECT (MIN(?autor) AS ?Author) (?x AS ?AuthorURI) (count(?obra) AS ?WorkCount17thCentury) WHERE { ?obra dc:creator ?x. ?x skos:prefLabel ?autor. ?obra dc:date ?fecha. FILTER( ?fecha >=("1601") && ?fecha <("1700") ) } GROUP BY ?x ORDER BY DESC(count(?obra))
PREFIX dc: <http://purl.org/dc/elements/1.1/> PREFIX skos: <http://www.w3.org/2004/02/skos/core#> SELECT ?Impresor (COALESCE(MIN(?NombreImpresor), ?Impresor) AS ?Name) (count(?p) AS ?PrintedWorkCount16thCentury) WHERE { ?p dc:publisher ?Impresor; dc:date ?fecha. OPTIONAL { ?Impresor skos:prefLabel ?NombreImpresor } FILTER( ?fecha >=("1501") && ?fecha <=("1600") ) } GROUP BY ?Impresor ORDER BY DESC(count(?p))
PREFIX dc: <http://purl.org/dc/elements/1.1/> PREFIX skos: <http://www.w3.org/2004/02/skos/core#> SELECT (?materia AS ?Subject) (MIN(?etiqueta) as ?SubjectLabel) (COUNT(?p) AS ?WorkCount18thCentury) WHERE { ?p dc:date ?fecha; dc:subject ?materia. ?materia skos:prefLabel ?etiqueta. FILTER( ?fecha >=("1701") && ?fecha <("1800") ) } GROUP BY ?materia ORDER BY DESC(COUNT(?p))
PREFIX dc: <http://purl.org/dc/elements/1.1/> PREFIX skos: <http://www.w3.org/2004/02/skos/core#> SELECT DISTINCT (?z AS ?Publisher) WHERE { ?p dc:creator/skos:prefLabel ?x; dc:publisher ?z. FILTER (CONTAINS(?x, "Feijoo, Benito")) }
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