Wikidata
Wolfgang Fahl
The Genesis of WikiData
Links
- Get your own copy of WikiData
- WikiBase DataModel
- https://www.wikidata.org/wiki/Special:GoToLinkedPage/enwiki/Q5
Structure
see also https://addshore.com/2018/12/wikidata-architecture-overview-diagrams/ https://www.mediawiki.org/wiki/Wikibase/DataModel/Primer
https://upload.wikimedia.org/wikipedia/commons/c/c2/Wikibase_JavaScript_Data_Model_1.0.svg
Example
Æthelstan King of the English - 927-939
Position Held
The Genesis of WikiData[edit]
Example[edit]
Æthelstan King of the English - 927-939
Position Held
Queen Victoria[edit]
- https://en.wikipedia.org/wiki/Queen_Victoria
- https://www.wikidata.org/wiki/Q9439
- http://royal-family.bitplan.com/index.php/Queen_Victoria
Entity:Queen Victoria[edit]
| Statements | |
|---|---|
| PropertyId/name | value |
| P18/image | 
|
| P569/date of birth | 24 May 1819 |
| P39/position held | Q9134365/Monarch of the United Kingdom qualifiers -> start:20 June 1837, end:22 January 1901, replaced by:https://www.wikidata.org/wiki/Q20875 |
| P570/date of death | 22 January 1901 |
| P20/place of death | Osborne House |
| P21/sex or gender] | Q6581072/female |
Entity:Queen Victoria[edit]
| Statements | |
|---|---|
| PropertyId/name | value |
| P18/image |
|
| P569/date of birth | 24 May 1819 |
| P39/position held | Q9134365/Monarch of the United Kingdom qualifiers -> start:20 June 1837, end:22 January 1901, replaced by:https://www.wikidata.org/wiki/Q20875 |
| P570/date of death | 22 January 1901 |
| P20/place of death | Osborne House |
| P21/sex or gender] | Q6581072/female |
Descendants of Queen Victoria[edit]
# WikiData SPARQL Query
#
# Wolfgang Fahl 2018-01-06
#
# get childen of queen victoria
SELECT ?child ?childLabel ?genderLabel ?dob
WHERE {
#
# child
# https://www.wikidata.org/wiki/Property:P40
# Queen Victoria
# https://www.wikidata.org/wiki/Q9439
wd:Q9439 wdt:P40+ ?child.
# gender
# https://www.wikidata.org/wiki/Property:P21
?child wdt:P21 ?gender.
# date of birth
# https://www.wikidata.org/wiki/Property:P569
?child wdt:P569 ?dob
SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
ORDER BY ?dob
How Triples are stored in WikiData[edit]
Regular triple[edit]
The file "mwstore://local-backend/local-public/diagrams/archive/20241121192712!Diagrams_b5043b34adf1cf9f03cc7977c1ca015f.png" already exists.
WikiData Example Queen Victoria's father[edit]
The file "mwstore://local-backend/local-public/diagrams/archive/20241121192712!Diagrams_4518bd357041ffff2861a83f6e439ebc.png" already exists.
Regular triple[edit]
WikiData Example Queen Victoria's father[edit]
WikiData Example Queen Victoria's father (technically)[edit]
The file "mwstore://local-backend/local-public/diagrams/archive/20241121192713!Diagrams_69fe283f436719ba4ac4f42a40e7312c.png" already exists.
WikiData Example Queen Victoria's father (multiple languages)[edit]
The file "mwstore://local-backend/local-public/diagrams/archive/20241121192713!Diagrams_90128f27d667bfdf6f0c537a7aadb70d.png" already exists.
Queen Victoria's father SPARQL Query[edit]
# WikiData SPARQL Query
#
# Wolfgang Fahl 2018-01-06
# see also https://stackoverflow.com/a/48341522/1497139
#
# get father of queen victoria
SELECT ?queenVictoria ?queenVictoriaLabel ?fatherProperty ?fatherPropertyLabel ?father ?fatherLabel
WHERE {
#
# father
# https://www.wikidata.org/wiki/Property:P42
# Queen Victoria
# https://www.wikidata.org/wiki/Q9439
VALUES (?queenVictoria) {(wd:Q9439)}
VALUES (?property) {(wdt:P22)}
?queenVictoria ?property ?father.
?fatherProperty wikibase:directClaim ?property
SERVICE wikibase:label { bd:serviceParam wikibase:language "fr". }
}