SPARQL endpoint select scrollable cursor

Extractor, allows the user to extract a CSV table from a SPARQL endpoint using a SELECT query, using the scrollable cursor technique for OpenLink Virtuoso.

Endpoint URL
URL of the SPARQL endpoint to be queried
File name
File name of the resulting CSV table
Page size
Specifies the size of one page to be returned
Default graph
IRIs of default graphs used for the SPARQL query
Query prefixes
Prefixes to be defined for the scrollable cursor query
Outer select clause
The SELECT clause of the outer paging query. It should be a subset of the SELECT clause of the inner query
Inner select query
Ordered SELECT query to be used as a nested query in the outer paging query

Characteristics

ID
e-sparqlendpointselectscrollablecursor
Type
extractor
Outputs
Files
Look in pipeline
SPARQL endpoint select scrollable cursor
Sample pipeline
available

The SPARQL endpoint select scrollable cursor component queries a remote SPARQL endpoint using a SPARQL SELECT query, using the scrollable cursor technique for OpenLink Virtuoso. This is helpful for getting larger results from an OpenLink Virtuoso SPARQL endpoint which would not return such a large result normally. This component is often used in combination with the SPARQL endpoint chunked component.