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MarkLogic 9 Product Documentation
op:from-sparql

op:from-sparql(
   $select as xs:string,
   [$qualifier as xs:string?]
) as map:map

Summary

This function dynamically constructs a row set based on a SPARQL SELECT query from triples.

Parameters
$select A SPARQL SELECT query expressed as a string.
$qualifier Specifies a name for qualifying the column names. An "@" in front of the name specifies a parameter placeholder. A parameter placeholder in the SPARQL string must be bound to a parameter value in the result() call.

Example


(: List all of the people born in Brooklyn. :)

xquery version "1.0-ml";

import module namespace op="http://marklogic.com/optic"
     at "/MarkLogic/optic.xqy";

  op:from-sparql('PREFIX db: <http://dbpedia.org/resource/>  
                  PREFIX foaf: <http://xmlns.com/foaf/0.1/>  
                  PREFIX onto: <http://dbpedia.org/ontology/>  
                  SELECT ?person ?name 
                    WHERE { ?person onto:birthPlace db:Brooklyn; 
                    foaf:name @name .}')
  => op:result((), map:entry("name", "Mae West"))

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