SPARQLAsk
Details and Options
- SPARQLAsk can be used in SPARQLExecute to query a SPARQL endpoint.
- The result of executing SPARQLAsk[pattern] is True if there is a subgraph matching pattern, and False otherwise.
- In SPARQLAsk[pattern], pattern can take the same form as in SPARQLSelect [pattern].
Examples
open all close allBasic Examples (1)
Data about fruits:
Check whether there is a fruit that is both red and rectangular:
A red and round fruit exists:
Scope (1)
Ask Wikidata whether there is a human (Q5) with German label "Albert Einstein":
Related Guides
Text
Wolfram Research (2019), SPARQLAsk, Wolfram Language function, https://reference.wolfram.com/language/GraphStore/ref/SPARQLAsk.html.
CMS
Wolfram Language. 2019. "SPARQLAsk." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/GraphStore/ref/SPARQLAsk.html.
APA
Wolfram Language. (2019). SPARQLAsk. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/GraphStore/ref/SPARQLAsk.html
BibTeX
@misc{reference.wolfram_2025_sparqlask, author="Wolfram Research", title="{SPARQLAsk}", year="2019", howpublished="\url{https://reference.wolfram.com/language/GraphStore/ref/SPARQLAsk.html}", note=[Accessed: 17-November-2025]}
BibLaTeX
@online{reference.wolfram_2025_sparqlask, organization={Wolfram Research}, title={SPARQLAsk}, year={2019}, url={https://reference.wolfram.com/language/GraphStore/ref/SPARQLAsk.html}, note=[Accessed: 17-November-2025]}