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Querying RDF Stores Using SPARQL—Wolfram Language Documentation

Querying RDF Stores Using SPARQL—Wolfram Language Documentation WOLFRAM Products

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Learning & Support Get Started More Learning Grow Your Skills Tech Support Company Work with Us Educational Programs for Adults Educational Programs for Youth Read Educational Resources Wolfram Initiatives Events Wolfram|Alpha Wolfram Cloud Your Account Search Navigation Menu Wolfram Language & System Documentation Center Wolfram Language Home Page » GRAPH STORE GUIDE Querying RDF Stores Using SPARQL

Query local and remote RDF graphs and datasets.

SPARQLQuery — represents a SPARQL query

SPARQLExecute — execute a query on a SPARQL endpoint

RDFStore — an RDF graph or dataset

Query Forms

SPARQLSelect — returns a list of bindings of variables to their values

SPARQLConstruct — create a graph from a template

SPARQLAsk — test whether a query pattern matches

Solution Modifiers

SPARQLOrderBy — sort solutions by the value of an expression

SPARQLProject — chose which variables to include in solutions

SPARQLDistinct — delete duplicate solutions

SPARQLLimit — limit the number of solutions

SPARQLAggregate — an aggregate

SPARQLEvaluation — evaluate functions during query evaluation

SPARQLEntailmentRegime — which entailment relations to use when evaluating a query

Graph patterns

SPARQLVariable — a variable in a graph pattern

RDFTriple — a triple pattern

List ({…}) — a group graph pattern

SPARQLFilter, Condition (/;) — a filter

SPARQLOptional — an optional pattern

Alternatives (|) — a union pattern

Except — negation

SPARQLPropertyPath — a property path pattern

Rule () — bind an expression to a variable

SPARQLValues — specify values for variables

SPARQLSelect — a subquery

SPARQLGraph — match part of a query against a named graph

SPARQLService — match part of a query on a SPARQL endpoint

Property paths

URL — a predicate path

SPARQLInverseProperty — an inverse path

Sequence — a sequence path

Alternatives (|) — an alternative path

RepeatedNull (...) — a zero or more path

Repeated (..) — a one or more path

Repeated[…,{0,1}] — a zero or one path

Except — a negated property set

Formats

"SPARQLQuery" — format for SPARQL queries

"SPARQLResultsJSON" — JSON-based format for the result of SPARQL SELECT and ASK queries

"SPARQLResultsXML" — XML-based format for the result of SPARQL SELECT and ASK queries

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