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Subject Item: n2:VirtTipsAndTricksGuideClearGraphsRelEmptyGraphs
rdf:type: atom:Entry sioct:Comment
dcterms:created: 2017-06-13T05:47:21.276357
dcterms:modified: 2017-06-13T05:47:21.276357
rdfs:label: VirtTipsAndTricksGuideClearGraphsRelEmptyGraphs
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dc:title: VirtTipsAndTricksGuideClearGraphsRelEmptyGraphs
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sioc:content: %META:TOPICPARENT{name="VirtTipsAndTricksGuide"}% ---++How to clear graphs which are related to empty graphs? The following example demonstrates how to remove graphs which are related to empty graphs: <verbatim> PREFIX nrl:<http://www.semanticdesktop.org/ontologies/2007/08/15/nrl#> SELECT ( bif:exec(bif:sprintf("SPARQL CLEAR GRAPH<%s>", str(?mg)))) WHERE { ?mg nrl:coreGraphMetadataFor ?g . FILTER(?g in ( <urn:nepomuk:local:8a9e692a> )) . FILTER ( !bif:exists((SELECT (1) WHERE { GRAPH ?g { ?s ?p ?o . } . })) ) . } </verbatim> ---+++Related * [[VirtTipsAndTricksGuide][Virtuoso Tips and Tricks Collection]]
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atom:title: VirtTipsAndTricksGuideClearGraphsRelEmptyGraphs
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atom:published: 2017-06-13T05:47:21Z
atom:updated: 2017-06-13T05:47:21Z
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