If you’re developing an application that is backed by a SQL database, sooner or later you will need to do a schema migration. Maybe you’ll need to add a new table or a new column, create a new index, or change some constraint. Luckily there are plenty of tools to help you! Migratus for Clojure, Flyway for Java, and dbmate as a more language-independent option are examples of the most common design pattern: you write migrations as DDL commands in SQL files and the tool keeps track of which...
