Ruby on Rails Anti-Patterns (How Not to Design your DB)

Join us as we expose database design anti-patterns. We'll model a shoe store and show both a simple design with flaws and more flexible alternatives. We'll discuss how to represent trees, and see that the simplest solution is the hardest to query. We'll explore scenarios where a polymorphic relationship looks like a good choice, but isn't (and one where it is). Learn these pitfalls, and save yourself from sloppy querying and poor performance