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SPARQL Services
This interface is designed to fetch a small amount of records, to retrieve all records access the service directly using your own SPARQL client. The general SPARQL query service is accessed directly using the SPARQL protocol at /sparql/sparql
Example SPARQL Queries
Below you can find several queries that can be used to query the EDMO SPARQL service.
Show the RDF representation of a single EDMO record (IFREMER / EDMO nr. 486)
DESCRIBE <https://edmo.seadatanet.org/report/486>
Get records modified after 2020-01-01
SELECT ?org ?name ?modifiedDate
WHERE {
?org a <http://www.w3.org/ns/org#Organization> ;
<http://purl.org/dc/terms/modified> ?modifiedDate ;
<http://www.w3.org/ns/org#name> ?name .
FILTER (?modifiedDate > '2020-01-01T00:00:00'^^<http://www.w3.org/2001/XMLSchema#dateTime>)
}
WHERE {
?org a <http://www.w3.org/ns/org#Organization> ;
<http://purl.org/dc/terms/modified> ?modifiedDate ;
<http://www.w3.org/ns/org#name> ?name .
FILTER (?modifiedDate > '2020-01-01T00:00:00'^^<http://www.w3.org/2001/XMLSchema#dateTime>)
}
Get records within polygon (Bounding box around the Netherlands)
PREFIX geo: <http://www.opengis.net/ont/geosparql#>
PREFIX geof: <http://www.opengis.net/def/function/geosparql/>
SELECT ?record
WHERE {
?record geo:hasGeometry ?geometry .
?geometry geo:asWKT ?wkt .
FILTER (geof:sfWithin(?wkt, "POLYGON((3.0 50.5, 7.0 50.5, 7.0 53.5, 3.0 53.5, 3.0 50.5))"^^geo:wktLiteral))
} LIMIT 100
PREFIX geof: <http://www.opengis.net/def/function/geosparql/>
SELECT ?record
WHERE {
?record geo:hasGeometry ?geometry .
?geometry geo:asWKT ?wkt .
FILTER (geof:sfWithin(?wkt, "POLYGON((3.0 50.5, 7.0 50.5, 7.0 53.5, 3.0 53.5, 3.0 50.5))"^^geo:wktLiteral))
} LIMIT 100
Links to SPARQL 1.1 Specifications
The full set of SPARQL specification is: