Prolog for Beginners Get a brief introduction to logical programing See relational, graph, and deductive databases in Prolog Clock Desktop only This is a gentle introduction to logical programming language Prolog using web front-end Swish which lets you dive in without needing to install any software. The course starts by comparing Prolog to SQL as a relational database query language. Some knowledge of SQL will help, but only a simple understanding of tables is required. Next we cover things Prolog can do but SQL can't, such as deductive databases. The course concludes by briefly introducing how Prolog can be used as a graph database language.