Migration Files in Phoenix

Firstly, we all might have or might not have heard about migration files. It's okay let me share you something. For that we should have some basic knowledge regarding migration. what are the migration files and their purpose? Migrations are used to modify your database schema over time and to tell the database about expected structure to have. Phoenix provides many helpers for migrating the database, allowing developers to use Elixir to alter their storage in a way that is database independent. While working on project I had to create one table in existing database. So I did like as