How can I use the Rails gem for data migration?

How can I use the Rails gem for data migration?

You can use the activerecord-migration gem to handle data migrations in Rails. It allows you to create, modify, and manage your database schema easily.

What are the steps to create a new migration?

To create a new migration, run rails generate migration MigrationName in your terminal. This will create a new migration file in the db/migrate directory.

How do I run the migration after creating it?

You can run the migration by executing rails db:migrate in your terminal. This will apply the changes to your database.

Can I roll back a migration if something goes wrong?

Yes, you can roll back the last migration by running rails db:rollback. This will undo the last migration applied.