Comment by yowlingcat

Asking this earnestly and not as a rhetorical question: what do I get from Prolog that I can't get from using SQL? Is it speed, is it ergonomics, is it the ability to do computations that are otherwise intractable? And if there are any such advantages, at what level of complexity of abstraction do they come up, and at which level would I not see the value of using prolog?