ruby on rails – How to rollback a specific migration? – Stack Overflow – Sep 5, 2010. See the Ruby on Rails guide entry on migrations. you can rollback your migration by using rake db:rollback with different options.
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Migrations and Models. Before actually writing your first migration, make sure you have a database created for this app and add its credentials to the.env file.
rake db:rollback STEP=2. To revert. rake db:migrate:down VERSION= 20100627185630. Does your version of Ruby on Rails still receive security updates?
When running migrations with rake db:migrate , there's the STEP and. rake db: rollback STEP=2 # Run the `down` migration path of a certain migration file rake.
How do you prepare your SQL deltas? do you manually save each schema-changing SQL to a delta folder, or do you have some kind of an automated diffing process? I am.
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Jan 3, 2014. rake db migrate with down, up, redo, rollback options. Running specific Migration, rake db:migrate VERSION=20130717110623, This runs.
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