🔥 Most Asked Interview Question: How Ruby on Rails Migrations Work Internally?
🚀 Most Asked Ruby on Rails Interview Question: How Rails Migrations Work Internally?
In this video, we'll dive deep into one of the most frequently asked Ruby on Rails interview questions: Rails Migrations.
You'll learn:
✅ What Rails Migrations are
✅ How `rails db:migrate` works internally
✅ What the `schema_migrations` table stores
✅ How Rails tracks executed migrations
✅ How Rollback works behind the scenes
✅ Understanding the LIFO (Last In First Out) migration stack
✅ Difference between `change`, `up`, and `down` methods
✅ How `VERSION` and `STEP` options work during migrations
✅ Real-world examples and visual diagrams
Rails Guide for Controller
https://guides.rubyonrails.org/action...
Rails Guide for Migrations
https://guides.rubyonrails.org/active...
Rails Guide for Model
https://guides.rubyonrails.org/active...
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Whether you're preparing for a Ruby on Rails interview or trying to understand migrations at a deeper level, this video will help you build a solid foundation.
💬 Interview Question:
"How does Rails know which migration to execute or rollback?"
After watching this video, you'll be able to answer that confidently.
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