%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: SELECT DISTINCT ?EntityType WHERE { SERVICE { SELECT * WHERE { ?Entity a ?EntityType } LIMIT 50 } } * [[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?]]