N+1 Queries Basics

What's this about?

Undestand the basics to avoid n+1 queries

Start your road to avoid n+1 queries like a pro, with my free ebook “N+1 queries basics”

  • Understand preload, eager_load, includes and joins and the difference between them.
  • Learn to identify when active record will execute your query.
  • Learn the tools that can help you detect n+1 queries before they hit production.


Benito Serna

Rubyist, software engineer, working at @briqmx, sharing mostly ruby/rails stuff. Amateur trumpet player