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Extended Query Options |
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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.