adsr13 said over 7 years ago on Getting Started - Ruby on Rails - Architectural Overview :

Rails 5 eliminates the necessity to call for 'rake db:migrate' to migrate a database. 'bin/rails or rails db:migrate is suffice. All 'rake' tasks are built into the 'rails' command. You may find this information to be valid here: 
https://www.youtube.com/watch?v=OaDhY_y8WTo