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%META:TOPICPARENT{name="VirtTipsAndTricksGuide"}% ---+Discover parameters used by SPARQL services that don't support SPARQL-FED ---++What? Many public SPARQL endpoints are SPARQL-FED compliant, which makes use of SPARQL-FED unpredicatable. ---++Why? A SPARQL endpoint mesh without SPARQL-FED support undermines the power of SPARQL in general i.e., the fact that its inherently distributed, unlike SQL. ---++How? You can discover parameters used by SPARQL services that don't support SPARQL-FED, in regards to SPARQL query solution (results) publication, and then use them in SPARQL-FED. for example by executing the following query: <verbatim> SELECT DISTINCT ?EntityType WHERE { SERVICE <http://admin.numismatics.org/nomisma/query?output=xml> { SELECT * WHERE { ?Entity a ?EntityType } LIMIT 50 } } </verbatim> * [[http://bit.ly/1yVqHXA][View the SPARQL Query Definition via SPARQL Protocol URL]]; * [[http://bit.ly/1wHGB9H][View the SPARQL Query Results via SPARQL Protocol URL]]. ---++Related * [[VirtTipsAndTricksDiscoverSPARQFedCapabilities][How to discover the capabilities of a SPARQL endpoint en route to enhancing SPARQL-FED usage from Virtuoso instances?]]
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