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SPARQLProject—Wolfram Language Documentation

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GRAPH STORE SYMBOL

GraphStore` SPARQLProject

SPARQLProject["var"]

is a query operator that yields solutions containing only values for the variable "var".

SPARQLProject["newvar"expr]

yields solutions containing only the variable "newvar" whose value is computed from expr.

SPARQLProject[{vspec₁,vspec₂,…}]

selects and computes values for multiple variables.

Examplesopen allclose all Basic Examples (1)

Data about books:

Find books and compute their time since publication in years:

Properties & Relations (1)

Solutions for two variables:

Project to variable "x":

The same using KeyTake:

Compute the square of "x":

The same using Query:

Wolfram Research (2020), SPARQLProject, Wolfram Language function, https://reference.wolfram.com/language/GraphStore/ref/SPARQLProject.html. Text Wolfram Research (2020), SPARQLProject, Wolfram Language function, https://reference.wolfram.com/language/GraphStore/ref/SPARQLProject.html.CMS Wolfram Language. 2020. "SPARQLProject." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/GraphStore/ref/SPARQLProject.html.APA Wolfram Language. (2020). SPARQLProject. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/GraphStore/ref/SPARQLProject.htmlBibTeX @misc{reference.wolfram_2025_sparqlproject, author="Wolfram Research", title="{SPARQLProject}", year="2020", howpublished="\url{https://reference.wolfram.com/language/GraphStore/ref/SPARQLProject.html}", note=[Accessed: 12-July-2025 ]}BibLaTeX @online{reference.wolfram_2025_sparqlproject, organization={Wolfram Research}, title={SPARQLProject}, year={2020}, url={https://reference.wolfram.com/language/GraphStore/ref/SPARQLProject.html}, note=[Accessed: 12-July-2025 ]}

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