Abstract
MatBase is a very powerful database management system based not only on the relational data model, but also on the elementary mathematical, entity-relationship, and Datalog logic ones. This paper briefly introduces MatBase and the elementary mathematical data model, after which is focused on the five relational constraint types and their enforcement in relational database management systems, as well as in MatBase.
Conflict of Interest
The authors declare no conflict of interest.
Ethical Approval
Not applicable
Data Availability
The datasets used in this study are openly available at [repository link] and the source code is available on GitHub at [GitHub link].
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