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Simple SPARQL Tutorial: Counting with COUNT

Tutorial explaining how the COUNT keyword allows one to determine the number of triples present in a dataset. Also shows how to use COUNT to determine in how many instances a variable is bound to a specific value.

URL: https://www.youtube.com/watch?v=fHoYujF-UHM
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: P10M

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: Counting with COUNT