Database Handling (Internal)

Because Prolog represents a relational database as a collection of facts, you can use it as a powerful query language for internal databases. Visual Prolog's unification algorithm automatically selects facts with the correct values for the known arguments and assigns values to any unknown arguments, while its backtracking algorithm can give all the solutions to a given query.

list		Saves dynamic database
prolog_compile_module		Compiles prolog program into memory
reconsult		Reset the current code
retract		Remove facts from the internal database.
save		Save the contents of the internal database.