https://thdaraujo.github.io/tags/sql/ Recent content in SQL on Thiago Araujo Hugo -- gohugo.io en-us Thu, 10 Jun 2021 11:53:56 -0700 https://thdaraujo.github.io/posts/how-to-write-order-by-case-query-with-arel/ Thu, 10 Jun 2021 11:53:56 -0700 https://thdaraujo.github.io/posts/how-to-write-order-by-case-query-with-arel/ You’re working on a feature and someone tells you that one of your models needs to be ordered based on some complicated rule. You realize you’ll need to write a complex order by query… Here’s how it usually goes: You think to yourself: “Should I write an order by case when statement? Maybe I’ll just add a little bit of SQL…" Two minutes later, you end up with a bunch of nested case when statements, subqueries, common table expressions, angry statements, shouting, and a whole lot of tears.