Learn DATALOG with Real Code Examples

Start with facts and simple rules

Learn variable binding and arity

Understand recursion patterns

Study stratification and negation

Practice with static-analysis datasets

Week 1: Basic facts, predicates, simple queries

Week 2: Joins and multi-rule logic

Week 3: Recursion (graph reachability)

Week 4: Negation and stratification

Week 5: Advanced optimization and Soufflé

What makes Datalog different from Prolog?

Explain stratified negation.

How does fixed-point evaluation work?

How is recursion handled in Datalog?

Why is Datalog good for static analysis?

parent(a, b). - fact

ancestor(X,Y) :- parent(X,Y). - base rule

ancestor(X,Z) :- parent(X,Y), ancestor(Y,Z). - recursion

:- unsafe(X). - constraint

not predicate - stratified negation

Foundations of Databases (Abiteboul, Hull, Vianu)

Logic Programming and Databases

Datalog and Logic Programming

Knowledge Representation and Reasoning

Program Analysis using Datalog

Intro to Datalog Rules

Recursive Queries and Graph Traversal

Static Analysis with Soufflé

Datalog for Authorization Systems

Building Knowledge Graph Reasoners

Soufflé Documentation

Flix Programming Language Documentation

Datomic Datalog Reference

Soufflé GitHub Discussions

Flix Community

Datomic Slack

Logic Programming Forums

Academic Research Groups

Soufflé community

Flix community

Datomic user groups

Academic logic programming groups

Compiler research communities