How do I perform database queries in Ruby?

How do I perform database queries in Ruby?

You can use ActiveRecord, which is a part of Rails, to perform database queries easily. What type of query are you looking to execute?

I want to retrieve all users from the database.

You can use User.all to retrieve all users. This will return an array of user objects.

How can I filter users based on a specific condition?

You can use User.where(condition) to filter users. For example, User.where(active: true) will return all active users.

What if I want to sort the results?

You can chain the order method. For example, User.order(:created_at) will sort users by their creation date.