Rake provides an efficient way for managing database changes. We can easily migrate database changes to servers using command line utility. In this article you will find some quickly uses of rake commands for database migrations.
rake db:create This command will take all database configuration from config/database.yml file and create appropriate database of current environment’s database.
Advertisement$ rake db:create RAILS_ENV=development
rake db:migrate The creates tables in database. It takes all files under db/migrate/ directory and execute one by one from older to newer files.
$ rake db:migrate RAILS_ENV=development
rake db:drop This drops the database for the current environment.
$ rake db:drop RAILS_ENV=development
rake db:migrate:status This command will show current migration status.
$ rake db:migrate:status RAILS_ENV=development
rake db:rollback This command will roll back the last migration done on current environment’s database.
$ rake db:rollback RAILS_ENV=development
rake db:seed This schema runs the db/seed.rb file on current environment’s database.
$ rake db:seed RAILS_ENV=development
rake db:schema:load This command will load the schema into the current environment’s database.
$ rake db:schema:load RAILS_ENV=development
