Data:
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix wikibase: <http://wikiba.se/ontology#> .
@prefix wd: <http://www.wikidata.org/entity/> .
@prefix s: <http://www.wikidata.org/entity/statement/> .
@prefix p: <http://www.wikidata.org/prop/> .
@prefix ps: <http://www.wikidata.org/prop/statement/> .
@prefix pq: <http://www.wikidata.org/prop/qualifier/> .
wd:Q29 a wikibase:Item .
wd:Q29 p:P1082 s:Q29-47E327E5-127D-4DC3-8C3F-9B2C7D5A0D62 .
s:Q29-47E327E5-127D-4DC3-8C3F-9B2C7D5A0D62 a wikibase:Statement ;
ps:P1082 "+30455000"^^xsd:decimal ;
pq:P585 "1960-01-01T00:00:00Z"^^xsd:dateTime .
wd:Q29 p:P1082 s:Q29-38AA233B-6CFF-4F9C-A73C-D0B23AC44E74 .
s:Q29-38AA233B-6CFF-4F9C-A73C-D0B23AC44E74 a wikibase:Statement ;
ps:P1082 "+33814531"^^xsd:decimal ;
pq:P585 "1970-01-01T00:00:00Z"^^xsd:dateTime .
wd:Q29 p:P1082 s:Q29-7BD19893-2B47-4028-956B-329344307600 .
s:Q29-7BD19893-2B47-4028-956B-329344307600 a wikibase:Statement ;
ps:P1082 "+37439035"^^xsd:decimal ;
pq:P585 "1980-01-01T00:00:00Z"^^xsd:dateTime .
wd:Q29 p:P1082 s:Q29-D0602463-6F4B-40BC-833D-45B216E354BE .
s:Q29-D0602463-6F4B-40BC-833D-45B216E354BE a wikibase:Statement ;
ps:P1082 "+38850435"^^xsd:decimal ;
pq:P585 "1990-01-01T00:00:00Z"^^xsd:dateTime .
wd:Q29 p:P1082 s:Q29-65A1C6CA-806A-49F4-9FA5-6BF600B82970 .
s:Q29-65A1C6CA-806A-49F4-9FA5-6BF600B82970 a wikibase:Statement ;
ps:P1082 "+40263216"^^xsd:decimal ;
pq:P585 "2000-01-01T00:00:00Z"^^xsd:dateTime .
Query:
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX s: <http://www.wikidata.org/entity/statement/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
# get the population and year of the statement
SELECT *
WHERE {
?subject p:P1082 ?statementobject.
?statementobject ps:P1082 ?population;
pq:P585 ?statementDate .
}
ORDER BY ?statementDate
Results:
arq --data=Q29_population.ttl --query=population_query.rq
-------------------------------------------------------------------------------------------------------------------------- | subject | statementobject | population | statementDate | ========================================================================================================================== | wd:Q29 | s:Q29-47E327E5-127D-4DC3-8C3F-9B2C7D5A0D62 | "+30455000"^^xsd:decimal | "1960-01-01T00:00:00Z"^^xsd:dateTime | | wd:Q29 | s:Q29-38AA233B-6CFF-4F9C-A73C-D0B23AC44E74 | "+33814531"^^xsd:decimal | "1970-01-01T00:00:00Z"^^xsd:dateTime | | wd:Q29 | s:Q29-7BD19893-2B47-4028-956B-329344307600 | "+37439035"^^xsd:decimal | "1980-01-01T00:00:00Z"^^xsd:dateTime | | wd:Q29 | s:Q29-D0602463-6F4B-40BC-833D-45B216E354BE | "+38850435"^^xsd:decimal | "1990-01-01T00:00:00Z"^^xsd:dateTime | | wd:Q29 | s:Q29-65A1C6CA-806A-49F4-9FA5-6BF600B82970 | "+40263216"^^xsd:decimal | "2000-01-01T00:00:00Z"^^xsd:dateTime | --------------------------------------------------------------------------------------------------------------------------
Data (using RDF*):
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix wikibase: <http://wikiba.se/ontology#> .
@prefix wd: <http://www.wikidata.org/entity/> .
@prefix ps: <http://www.wikidata.org/prop/statement/> .
@prefix pq: <http://www.wikidata.org/prop/qualifier/> .
wd:Q29 a wikibase:Item;
ps:P1082 "+30455000"^^xsd:decimal ;
ps:P1082 "+33814531"^^xsd:decimal ;
ps:P1082 "+37439035"^^xsd:decimal ;
ps:P1082 "+38850435"^^xsd:decimal ;
ps:P1082 "+40263216"^^xsd:decimal .
<< wd:Q29 ps:P1082 "+30455000"^^xsd:decimal >> pq:P585 "1960-01-01T00:00:00Z"^^xsd:dateTime .
<< wd:Q29 ps:P1082 "+33814531"^^xsd:decimal >> pq:P585 "1970-01-01T00:00:00Z"^^xsd:dateTime .
<< wd:Q29 ps:P1082 "+37439035"^^xsd:decimal >> pq:P585 "1980-01-01T00:00:00Z"^^xsd:dateTime .
<< wd:Q29 ps:P1082 "+38850435"^^xsd:decimal >> pq:P585 "1990-01-01T00:00:00Z"^^xsd:dateTime .
<< wd:Q29 ps:P1082 "+40263216"^^xsd:decimal >> pq:P585 "2000-01-01T00:00:00Z"^^xsd:dateTime .
Query (using SPARQL*):
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
# get the population and year of the statement
SELECT *
WHERE {
<<?subject ps:P1082 ?population>> pq:P585 ?statementDate .
}
ORDER BY ?statementDate
Results:
arq --data=Q29_population_star.ttl --query=population_query_star.rq
----------------------------------------------------------------------------- | subject | population | statementDate | ============================================================================= | wd:Q29 | "+30455000"^^xsd:decimal | "1960-01-01T00:00:00Z"^^xsd:dateTime | | wd:Q29 | "+33814531"^^xsd:decimal | "1970-01-01T00:00:00Z"^^xsd:dateTime | | wd:Q29 | "+37439035"^^xsd:decimal | "1980-01-01T00:00:00Z"^^xsd:dateTime | | wd:Q29 | "+38850435"^^xsd:decimal | "1990-01-01T00:00:00Z"^^xsd:dateTime | | wd:Q29 | "+40263216"^^xsd:decimal | "2000-01-01T00:00:00Z"^^xsd:dateTime | -----------------------------------------------------------------------------
... more about "RDF* & SPARQL*"