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Simple SPARQL Tutorial: Using SUM and AVG

Building on the previous tutorial in the series and its discussion of the COUNT keyword, this tutorial explains several other mathematical functions of SPARQL queries. Using SUM to add together all the values that are bound to the variable that is passed to it.

URL: https://www.youtube.com/watch?v=-Ld0bddQmfU
Keywords: SPARQL
Author: Sadawi, Noureddin
Date created: 2014-03-03 07:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P5M
Educational use: instruction
Educational audience: professional
Interactivity type: mixed

Competencies

Uses aggregates to apply expressions over groups of solutions (GROUP BY, COUNT, SUM, AVG, MIN) for partitioning results, evaluating projections, and filtering.

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Simple SPARQL Tutorial: Using SUM and AVG