Previous topic  Top  Next topic  Print this Topic

Extended Query Options


Beside the standard SPARQL syntax and semantics, OntoBroker RDF offers additional query options:

debug: Enables debug mode with more detailed output on the rules and optimizations.
visualDebug: Start visual debugger, a Swing based GUI for debugging.
inferOff: Disable RDF(S) inferencing.
profile: Information about possible performance issues.

Simply extend the query by the keyword OPTIONS (not case sensitive) and add all of the query options enclosed inside a SPARQL string, separated by comma. An example:

SELECT * { ?s ?p ?o } OPTIONS "inferOff, debug"

For more detailed information on the query options and interpretation of the output, see the main OntoBroker documentation.