SPARQLの基礎

http://oreilly.com/catalog/0636920020547/

http://www.w3.org/DesignIssues/LinkedData.html

http://wiki.dbpedia.org/OnlineAccess

http://iss.ndl.go.jp/ndla/sparql/

A C
B

D
E
F

H

G
I
K
J

L M

A C
B

D
E
F

H

G
I
K
J

L M

:A ?link1 ?node1
?node1 ?link2 ?node2

A like like C
B
like dislike
D dislike
dislike
E
F
dislike
like
H
like
dislike
G
like I
dislike K
dislike like
J

L dislike
M

A like like C
B
like dislike
D dislike
dislike
E
F
dislike
like
H
like
dislike
G
like I
dislike K
dislike like
J

L dislike
M

:A :like ?node1
?node1 :like ?node2

rdfs:label
dbpedia-owl:capital
dbpedia:Japan
dbpedia-
owl:City
rdf:type dbpedia-owl:coutnry
dbpedia-
dbpedia:Tokyo dbpprop:birthPlace rdf:type owl:ComicCreator
dbpprop:birthPlace
rdf:type dbpedia-
rdfs:label dbpedia:Kaoru_Mori
owl:sameAs owl:Artist
owl:sameAs dbpprop:birthdate rdf:type

1978-09-18 rdfs:label foaf:homepage foaf:Person
rdfs:label
freebase: Мори, Каору http://
morikaoru.blog62.fc2.com

dbpedia-owl:Capital
dbpedia:Japan dbpedia:Tokyo

PREFIX dbpedia: <http://dbpedia.org/resource/>
PREFIX dbpedia-owl: <http://dbpedia.org/ontology/>

SELECT ?country
WHERE {
dbpedia:Tokyo dbpedia-owl:country ?country .
}

rdfs:label
dbpedia-owl:capital
dbpedia:Japan
dbpedia-
owl:City
dbpedia-
dbpedia:Tokyo dbpprop:birthPlace rdf:type owl:ComicCreator
dbpprop:birthPlace
rdf:type dbpedia-

rdfs:label

PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?birthPlace ?label
WHERE {
dbpedia:Kaoru_Mori dbpedia-owl:birthPlace ?birthPlace .
?birthPlace rdfs:label ?label .
}

rdfs:label
dbpedia-owl:capital
dbpedia:Japan
dbpedia-
owl:City
dbpedia-
dbpedia-owl:birthPlace rdf:type owl:ComicCreator
dbpedia:Tokyo
dbpedia-owl:birthPlace
rdf:type dbpedia-

rdfs:label


WHERE {
?birthPlace rdf:type dbpedia-owl:City ;
rdfs:label ?label .
}

rdfs:label
dbpedia-owl:capital dbpedia:Japan
dbpedia-
owl:City
dbpedia-
dbpedia:Tokyo
rdf:type dbpedia-

rdfs:label


WHERE {
?birthPlace a dbpedia-owl:City ;
rdfs:label ?label .
FILTER (lang(?label) = “ja”)
}

rdfs:label
dbpedia-owl:capital dbpedia:Japan
dbpedia-
owl:City
dbpedia-
dbpedia:Tokyo
rdf:type dbpedia-

rdfs:label

SELECT *
WHERE {
?s ?p ?o .
}
LIMIT 100
OFFSET 100

: yes / no


ASK WHERE {
}

PREFIX foaf: <http://xmlns.com/foaf/0.1/>

CONSTRUCT {
?s foaf:name ?name .
}
WHERE {
?s foaf:name ?name .
}

( )

DESCRIBE <http://dbpedia.org/resource/Tokyo>

dbpedia-owl:Artist
freebase:
a
music.producer
a
freebase: owl:sameAs dbpedia: dbpedia:
en.mike_oldfield Mike_Oldfield Virgin_Records
freebase:
dbpedia-owl:
music.producer.
recordLabel
releases_produced
dbpedia-owl: dbpedia-owl:
freebase: owl:sameAs artist producer
freebase: music.release.
m.0328jl5 producer a
freebase: dbpedia: dbpedia-owl:Album
type.object.name owl:sameAs Tubular_Bells

Tubular Bells owl:sameAs

bbc_artists: mo:musicbrainz musicbrainz:
a a1684a49-feaa-4150-b758- a1684a49-feaa-4150-b758-
d9412fc59f12#artist d9412fc59f12.html
mo:SoloArtist mo:imdb
foaf:name
imdb:nm0646131

Mike Oldﬁeld

(default-graph)

http://www.freebase.com http://dbpedia.org
dbpedia-owl:Artist
freebase:
a
music.producer
a
freebase:
dbpedia-owl:
music.producer.
recordLabel
releases_produced


foaf:name
imdb:nm0646131

Mike Oldﬁeld

http://www.bbc.co.uk (default-graph)

http://www.freebase.com http://dbpedia.org
dbpedia-owl:Artist
freebase:
a
music.producer
a
freebase:
dbpedia-owl:
music.producer.
recordLabel
releases_produced


foaf:name
imdb:nm0646131

Mike Oldﬁeld

http://www.bbc.co.uk
(default-graph)

SELECT *
WHERE {
GRAPH <http://dbpedia.org> {
?s ?p ?o .
}
}

SELECT *
WHERE {
GRAPH ?g {
?s ?p ?o .
}
}

{ ex:A ex:like ?tmpNode . ?tmpNode ex:like ?node . }
=> { ex:A ex:like/ex:like ?node }
=> { ex:A ex:like{2} ?node }
...
=> { ex:A ex:like+ ?node }

{ ex:A (ex:like|ex:love) ?node }

COUNT, SUM, MIN, MAX, AVG,
GROUP_CONCAT, SAMPLE


SELECT (COUNT(?label) AS ?count)
WHERE {
dbpedia:Tokyo rdfs:label ?label .
}

SPARQLの基礎

Recomendados

Recomendados

Mais conteúdo relacionado

Mais de Fumihiro Kato

Mais de Fumihiro Kato (20)

Último

Último (20)

SPARQLの基礎