The graphical Datalog editor/interpreter and also the parser included in the source code both acknowledge the following grammar for Datalog: Datalog is a declarative logic programming language. While it can be syntactically a subset of Prolog, Datalog generally makes use of a bottom-up as an alternative to top rated-down evaluation https://datalog39504.bloggerbags.com/39819586/5-simple-techniques-for-datalog