This is a talk I gave at PDX.rb in May 2015.

This repository contains the slides and my notes (in talk), and a sample Rails app with RSpec tests to make sure I wasn't lying (in src).

You can find the slides pre-built here:

http://illuminatedcomputing.com/talks/rails-and-sql/

and the video here:

https://www.youtube.com/watch?v=Cgg3ylFASYk