Last time I said we had extended SPARQL for subqueries. As a preview of the new functionality, let us look at a query from TPC H. The below is the Virtuoso SPARQL version of Q2. sparql define sql:signal-void-variables 1 prefix tpcd: prefix oplsioc: prefix sioc: prefix foaf: select ?supp+>tpcd:acctbal, ?supp+>tpcd:name, ?supp+>tpcd:has_nation+>tpcd:name as ?nation_name, ?part+>tpcd:partkey, ?p ... Continue reading