is now LinkedIn Learning!

To access courses again, please join LinkedIn Learning

All the same content you know and love

Plus, personalized course recommendations tailored just for you

All the same access to your Lynda learning history and certifications

Try LinkedIn Learning for free
Questions? Visit our help center.
Skip navigation is no longer available for individual subscribers. Please go to LinkedIn Learning to access your account if you moved or to sign up for a new account. For additional support, reach out to

Understanding ActiveRecord and ActiveRelation

Understanding ActiveRecord and ActiveRelation: Ruby on Rails 6 Essential Training
Understanding ActiveRecord and ActiveRelation: Ruby on Rails 6 Essential Training

ActiveRecord is a code library in Rails which implements the active record design pattern for working with database data in an object-oriented way. Your models understand the structure of the database and use simple methods to interact with the database by generating complex SQL statements. ActiveRelation is the system for generating those complex queries and allows you to combine and add to queries and always get sensible SQL as a result.

Resume Transcript Auto-Scroll
Skill Level Beginner
3h 41m
Show More Show Less
Skills covered in this course
Developer Web Web Development Ruby on Rails

Continue Assessment

You started this assessment previously and didn't complete it. You can pick up where you left off, or start over.

Start My Free Month

Start your free month on LinkedIn Learning, which now features 100% of courses. Develop in-demand skills with access to thousands of expert-led courses on business, tech and creative topics.

Start My Free Month

You are now leaving and will be automatically redirected to LinkedIn Learning to access your learning content.