PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
<LarryPage>
<name> "Lawrence Edward Page"^^xsd:string ;
<numberOfChildren> 2 ;
<height> 1.7 ;
<birthdate> "1973-03-26"^^xsd:date ;
<wikipediaPage> "https://en.wikipedia.org/wiki/Larry_Page"^^xsd:anyURI ;
<wealthInDollars> "107.9e9"^^xsd:double
Retrieving all the that of the DB
PREFIX : <http://example.org/#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT * WHERE { ?s ?p ?o } LIMIT 10
PREFIX : <http://example.org/#>
:myProductionSystem a :System ;
:hasSubSystem :roboticArm1 , :conveyorBelt2 .
:roboticArm1 a :System , :RoboticArm ;
:hasManufacturer :ABB .
:conveyorBelt2 a :System ;
:hasSpeed "0.1" .
Retrieving all the that of the DB
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT * WHERE {?s ?p ?o} LIMIT 10
Retrieving all the Systems (which is all the data of this DB)
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT * WHERE {?s a :System} LIMIT 10
Retrieving the objects that have subsystems
PREFIX : <http://example.org/#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT * WHERE { ?System :hasSubSystem ?SS } LIMIT 10
Retrieving objects that have subsystems and its subsystem hasSpeed 0.1
PREFIX : <http://example.org/#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT * WHERE { ?s :hasSubSystem ?SS. ?SS :hasSpeed "0.1". } LIMIT 10