I've updated the example query with your pro tip. Thanks FabC
Il giorno mer 8 mag 2019 alle ore 09:59 Markus Kroetzsch < markus.kroetzsch@tu-dresden.de> ha scritto:
On 07/05/2019 23:37, Eugene Alvin Villar wrote:
Hi,
You can fix the query by replacing the following SPARQL statement:
?country wdt:P31 wd:Q6256....with the following 2 statements:
?country p:P31 ?countryStatement. ?countryStatement ps:P31 wd:Q6256.Pro tip: you can also write
?country p:P31/ps:P31 wd:Q6256.
so the query looks almost as simple as before. Replacing wdt:Pxxx with p:Pxxx/ps:Pxxx is a general pattern to switch from "preferred" statements to "all" statements.
This will include deprecated statements though. To filter those, one would need the longer version and write something like
?country p:P31 ?statement . ?statement ps:P31 wd:Q6256 . FILTER NOT EXISTS {?statement wikibase:rank wikibase:DeprecatedRank}
Markus
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