Rails:Migrations

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Contents

1 Official Documentation
2 Schema Migrations
- 2.1 Generate a Migration
  - 2.1.1 Add a Column
3 Data Migrations

Official Documentation

https://guides.rubyonrails.org/active_record_migrations.html

Schema Migrations

Generate a Migration

Add a Column

Data Migrations

What if you need to do a data migration or data fix on existing data?

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