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CommentResponse:BT-2
From SPARQL Working Group
In response to http://lists.w3.org/Archives/Public/public-rdf-dawg-comments/2011Sep/0000.html
> What is the output of this query if no solutions satisify the WHERE clause? > An empty solution set or a solution set with a single solution having a > binding of 0^^xsd:integer? > > PREFIX : <http://example/> > SELECT (SUM(?lprice) AS ?totalPrice) > WHERE { > ?book :price ?lprice . > } > GROUP BY ?book
An empty solution set.
Please indicate whether this response has answered your query.
Steve, on behalf of the SPARQL Working Group