[Virtuoso-users] Can't provide multiple values in values when using union?

In trying to answer a StackOverflow question [1], I ended up writing this query for the DBpedia endpoint [2], which works: [[[ select ?s ?p ?o where { values ?web { dbpedia:World_Wide_Web } values ?p { rdf:type dbpedia-owl:abstract } ?web ?p ?o bind( ?web as ?s ) } limit 3 ]]] Note that

[Virtuoso-users] How cheaply can I get FILTER NOT EXISTS from virtuoso-opensource-6.0?

Virtuoso, I have a set up with virtuoso-opensource-6.0 that I’d like to get FILTER NOT EXISTS from. What’s the easiest way to get there? [1] mentions “1.1 before 1.1” features, but not FILTER NOT EXISTS specifically (it focuses in UPDATE) [2] mentions FILTER NOT EXISTS under announcements for

[Virtuoso-users] Virtuoso 37000 Error SP031 with FILTER NOT EXISTS inside SERVICE clause

Hello all, I am running Virtuoso Opensource 6.1.7 on Ubuntu. I am trying to use FILTER NOT EXISTS inside a SERVICE clause, as follows: SELECT ?a ?val ?label WHERE { ?a ?val . SERVICE { ?a rdfs:label ?label . FILTER NOT EXISTS {