Querying: Difference between revisions
Line 100: | Line 100: | ||
group by ?number | group by ?number | ||
order by ?number | order by ?number | ||
===Sancak status ending between 1830 and 1840=== | |||
This query will return a region more than once, if it undergoes status change more than once during this time period.[https://tinyurl.com/2ew6y2vw run] | |||
SELECT ?sancak ?sancakLabel (YEAR(?starttime) as ?start) (YEAR(?endtime) as ?end) | |||
WHERE | |||
{ | |||
?sancak ogt:P6 og:Q1. | |||
?sancak ogp:P15 ?statement. | |||
?statement ogps:P15 og:Q4. | |||
?statement ogpq:P7 ?starttime. | |||
OPTIONAL{?statement ogpq:P8 ?endtime.} | |||
OPTIONAL{?statement ogpq:P22 ?endtime.} | |||
FILTER(YEAR(?endtime) >= 1830 && YEAR(?endtime) <= 1840) | |||
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" } | |||
} | |||
ORDER BY (?endtime) | |||
== Federated query with Wikidata == | == Federated query with Wikidata == |
Revision as of 15:38, 23 January 2023
Run SPARQL queries via the Ottgaz Query Service.
Remember: SPARQL is currently case sensitive, as elastic search is disabled in wikibase.cloud.
Namespace
Declare these namespaces at the start of every query:
PREFIX og: <https://ottgaz.org/entity/> PREFIX ogs: <https://ottgaz.org/entity/statement/> PREFIX ogv: <https://ottgaz.org/value/> PREFIX ogt: <https://ottgaz.org/prop/direct/> PREFIX ogp: <https://ottgaz.org/prop/> PREFIX ogps: <https://ottgaz.org/prop/statement/> PREFIX ogpq: <https://ottgaz.org/prop/qualifier/>
Sample queries
Label
All regions that had vilayet status, as well as their English language label. run
SELECT ?vilayet ?vilayetLabel WHERE { ?vilayet ogt:P15 og:Q5. SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" } }
Duration, start and end dates
Duration between start and end date of every region with a start date, as well as region type. run
SELECT ?regionLabel ?statusLabel (YEAR(?starttime) as ?start) (YEAR(?endtime) as ?end) ?duration WHERE { ?region ogt:P6 og:Q1. ?region ogp:P15 ?statement. ?statement ogps:P15 ?status. ?statement ogpq:P7 ?starttime. OPTIONAL{?statement ogpq:P8 ?endtime.} OPTIONAL{?statement ogpq:P22 ?endtime.} BIND(year(?endtime)-year(?starttime) as ?duration ) SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" } } ORDER BY desc(?duration)
Number of kazas created each year
In each year, how many kazas were inaugurated? run
SELECT ?year (COUNT (DISTINCT ?kaza) AS ?count) WHERE { ?kaza ogt:P15 og:Q3. ?kaza ogp:P15 ?statement. ?statement ogps:P15 og:Q3. ?statement ogpq:P7 ?starttime. bind(year(?starttime) as ?year) } GROUP BY ?year ORDER BY desc(?count)
Count status types in a given year
For a given year, how many regions of each status are found in the dataset? run
SELECT (COUNT (DISTINCT ?region) AS ?count) ?statusLabel WHERE { ?region ogp:P15 ?statement. ?statement ogps:P15 ?status. ?statement ogpq:P7 ?starttime. OPTIONAL{?statement ogpq:P8 ?endtime.} OPTIONAL{?statement ogpq:P22 ?endtime.} #enter same year twice FILTER(YEAR(?starttime) <= 1600 && YEAR(?endtime) > 1600) SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" } } GROUP BY ?statusLabel ORDER BY desc(?count)
Number of kazas between 1800 and 1900
- This query is not working yet.* The query below returns the number of vilayets between 1750 and 1760. Thanks to Stanislav Kralin for help. [ run]
PREFIX wd: <http://www.wikidata.org/entity/> PREFIX wdt: <http://www.wikidata.org/prop/direct/> SELECT ?number (count(*) as ?count) { SERVICE <https://query.wikidata.org/sparql> { ?year wdt:P31 wd:Q21199 ; wdt:P1181 ?number FILTER (?number >= 1750 && ?number <= 1760) } ?vilayet ogt:P15 og:Q5. ?vilayet ogp:P15 ?statement. ?statement ogps:P15 og:Q5. ?statement ogpq:P7 ?starttime. OPTIONAL{?statement ogpq:P8 ?endtime.} OPTIONAL{?statement ogpq:P22 ?endtime.} BIND (YEAR(?starttime) AS ?year1) BIND (YEAR(COALESCE(?endtime, NOW())) AS ?year2) FILTER (?number >= ?year1 && ?number <= ?year2) } group by ?number order by ?number
Sancak status ending between 1830 and 1840
This query will return a region more than once, if it undergoes status change more than once during this time period.run
SELECT ?sancak ?sancakLabel (YEAR(?starttime) as ?start) (YEAR(?endtime) as ?end) WHERE { ?sancak ogt:P6 og:Q1. ?sancak ogp:P15 ?statement. ?statement ogps:P15 og:Q4. ?statement ogpq:P7 ?starttime. OPTIONAL{?statement ogpq:P8 ?endtime.} OPTIONAL{?statement ogpq:P22 ?endtime.} FILTER(YEAR(?endtime) >= 1830 && YEAR(?endtime) <= 1840) SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" } } ORDER BY (?endtime)
Federated query with Wikidata
For every sanjak in Ottgaz, this query fetches the vilayet or eyalet to which Wikidata says it belongs. Thanks to Lucas Werkmeister for help. run
PREFIX og: <https://ottgaz.org/entity/> PREFIX ogt: <https://ottgaz.org/prop/direct/> PREFIX wd: <http://www.wikidata.org/entity/> PREFIX wdt: <http://www.wikidata.org/prop/direct/> SELECT ?sancak ?sancakLabel ?vilayet ?vilayetLabel WHERE { ?sancak ogt:P15 og:Q4 . # item must be a sanjak ?sancak ogt:P4 ?c . # finds reference URL to wikidata BIND(IRI(REPLACE(REPLACE(REPLACE(STR(?c), "Property:", ""), "/wiki/", "/entity/"), "https://", "http://")) AS ?wd_c) # produces proper URL for query form SERVICE <https://query.wikidata.org/sparql> { ?wd_c wdt:P131 ?vilayet . # finds containing vilayet in Wikidata SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". ?vilayet rdfs:label ?vilayetLabel. # finds label in Wikidata } } SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". ?sancak rdfs:label ?sancakLabel. # finds label in Ottgaz } }