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Example SPARQL queries in Wolfram Language: Difference between revisions
Example SPARQL queries in Wolfram Language (view source)
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<syntaxhighlight lang="mathematica"> | This code transforms the string SPARQL query into a Wolfram Language SPARQLQuery.<syntaxhighlight lang="mathematica"> | ||
ImportString[ | ImportString[ | ||
"SELECT?subject?predicate?object | "SELECT?subject?predicate?object | ||
WHERE {?subject ?predicate ?object .}", | WHERE {?subject ?predicate ?object .}", | ||
"SPARQLQuery"] | "SPARQLQuery"] | ||
</syntaxhighlight><syntaxhighlight lang="mathematica"> | </syntaxhighlight>The query below is the Wolfram Language representation of the query above,<syntaxhighlight lang="mathematica"> | ||
query = SPARQLQuery[ | query = SPARQLQuery[ | ||
SPARQLSelect[{RDFTriple[SPARQLVariable["subject"], | SPARQLSelect[{RDFTriple[SPARQLVariable["subject"], | ||
SPARQLVariable["predicate"], SPARQLVariable["object"]]}]/* | SPARQLVariable["predicate"], SPARQLVariable["object"]]}]/* | ||
SPARQLProject[{"subject", "predicate", "object"}]] | SPARQLProject[{"subject", "predicate", "object"}]] | ||
</syntaxhighlight><syntaxhighlight lang="mathematica"> | </syntaxhighlight>This code executes the query above agains the semiWiki RDFStore created in [[Import SMW .jsonld as RDFStore in Wolfram Language]]<syntaxhighlight lang="mathematica"> | ||
SPARQLExecute[semiWiki, query] | SPARQLExecute[semiWiki, query] | ||
</syntaxhighlight> | </syntaxhighlight> | ||