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SPARQLGraph[iri,expr]

represents expr in the context of the graph identified by the identifier iri.

Details and Options
Details and Options Details and Options
Examples  
Basic Examples  
See Also
Related Guides
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GraphStore`
GraphStore`

SPARQLGraph

SPARQLGraph[iri,expr]

represents expr in the context of the graph identified by the identifier iri.

Details and Options

  • SPARQLGraph[iri,patt] can be used in SPARQLSelect and related functions to match the graph pattern patt against the graph identified by the identifier iri.
  • SPARQLGraph[iri,data] can be used in SPARQLInsertData and related functions to insert data into the graph identified by the identifier iri.

Examples

Basic Examples  (1)

Wolfram Language code: Needs["GraphStore`"]

Current and historical data about countries:

Wolfram Language code: rdfs[s_] := URL["http://www.w3.org/2000/01/rdf-schema#" <> s]; time[s_] := URL["http://www.w3.org/2006/time#" <> s]; ex[s_] := URL["http://example.org/" <> s];
Wolfram Language code: countryData = RDFStore[ { RDFTriple[ex["spain"], rdfs["label"], "Spain"], RDFTriple[ex["spain"], ex["population"], 46528024], RDFTriple[ex["hungary"], rdfs["label"], "Hungary"], RDFTriple[ex["hungary"], ex["population"], 9817958] }, <| ex["historical/1980"] -> { RDFTriple[ex["historical/1980"], time["year"], 1980], RDFTriple[ex["spain"], ex["population"], 37439035] } |> ]

Look up historical data for Spain:

Wolfram Language code: countryData//SPARQLSelect[SPARQLGraph[SPARQLVariable["g"], { RDFTriple[SPARQLVariable["g"], time["year"], SPARQLVariable["year"]], RDFTriple[ex["spain"], ex["population"], SPARQLVariable["pop"]] }] -> {"year", "pop"}]

The latest data:

Wolfram Language code: countryData//SPARQLSelect[RDFTriple[ex["spain"], ex["population"], SPARQLVariable["pop"]]]

Insert additional historical data:

Wolfram Language code: countryData = countryData//SPARQLInsertData[SPARQLGraph[ex["historical/1961"], { RDFTriple[ex["historical/1961"], time["year"], 1961], RDFTriple[ex["spain"], ex["population"], 30739250] }]]

An additional named graph has been added to the RDF dataset:

Wolfram Language code: countryData//SPARQLSelect[SPARQLGraph[SPARQLVariable["g"], {}]]
Wolfram Research (2019), SPARQLGraph, Wolfram Language function, https://reference.wolfram.com/language/GraphStore/ref/SPARQLGraph.html.

Text

Wolfram Research (2019), SPARQLGraph, Wolfram Language function, https://reference.wolfram.com/language/GraphStore/ref/SPARQLGraph.html.

CMS

Wolfram Language. 2019. "SPARQLGraph." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/GraphStore/ref/SPARQLGraph.html.

APA

Wolfram Language. (2019). SPARQLGraph. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/GraphStore/ref/SPARQLGraph.html

BibTeX

@misc{reference.wolfram_2026_sparqlgraph, author="Wolfram Research", title="{SPARQLGraph}", year="2019", howpublished="\url{https://reference.wolfram.com/language/GraphStore/ref/SPARQLGraph.html}", note=[Accessed: 13-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_sparqlgraph, organization={Wolfram Research}, title={SPARQLGraph}, year={2019}, url={https://reference.wolfram.com/language/GraphStore/ref/SPARQLGraph.html}, note=[Accessed: 13-June-2026]}