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pptx Augmented Relational Calculus

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Posted By: Ken Evans Views: 1,461
Date Added: Tue, Nov 25 2014

This talk by Terry Halpin and Matt Curland provides a brief overview of their Augmented Relational Calculus (ARC) language which is a version of first-order, 2-valued, domain relational calculus extended to support null items, aggregate functions and bags.

ARC provides a formal basis for expressing queries and derivation rules over Object-Role  models. For non-technical users, ARC queries may be rephrased in a simpler syntax such as FORML.


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