Implementing Datalog in Python: A Relational Database Language More Powerful Than SQL

This article demonstrates how to implement Datalog, a relational database language more powerful than SQL, using Python. Datalog, a subset of Prolog, isn't Turing-complete but excels at modeling relationships. The article thoroughly explains Datalog's core concepts, including predicates, facts, rules, and variables, and provides a straightforward Python implementation featuring the Naïve Evaluation algorithm. With this implementation, you can create and query Datalog programs, experiencing the elegance and power of this relational modeling approach.