Database

Lesson in the Ruby on Rails Roadmap · Stage 8: Databases

Last updated 14 September 2026

What is Database?

Databases are structured collections of data, organized for efficient storage, retrieval, and management. Active Record is Rails' ORM (Object-Relational Mapping) layer, providing an interface between your Ruby code and the database. It allows you to interact with database tables as if they were Ruby objects, simplifying database operations like creating, reading, updating, and deleting records.

Study this in the interactive course See the whole Ruby on Rails roadmap

Free resources to learn Database

Official docsConfiguring a Database
Official docsMultiple Databases with Active Record
ArticleSetting Up and Managing Databases in Ruby on Rails
ArticleThe Rails database.yml File
VideoHow to Configure Multiple Databases with Rails

Database: common questions

Can I learn Database in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Database in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Database tutorial for beginners?

It is lesson 50 of 98 in the free Ruby on Rails roadmap, in stage 8, Databases. If you are new to Ruby on Rails, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.