Hi,
I was trying a bit of queries on DBPedia, but different runs of the following
queries yield different results! Any explanation ?
best,
Andrea Splendiani
SELECT distinct * WHERE {
?x a <http://dbpedia.org/ontology/City>
optional {?x <http://dbpedia.org/ontology/populationTotal> ?p}
optional {?x <http://dbpedia.org/ontology/country> ?y .
?y <http://dbpedia.org/property/populationCensus> ?p2}
filter(?p>?p2)
}
order by ?p
SELECT distinct * WHERE {
?x a <http://dbpedia.org/ontology/City>
optional {?x <http://dbpedia.org/ontology/populationTotal> ?p}
optional {?x <http://dbpedia.org/ontology/country> ?y .
?y <http://dbpedia.org/property/populationCensus> ?p2}
filter(?p2<?p)
}
order by ?p
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