Resolving the `Mysql2::Error: MySQL client is not connected` Issue in Rails Applications

Mastering Union All: Combining Data from Multiple Tables with Active Record Relations in Rails

Optimizing Queries for Improved Performance in Ruby on Rails

Understanding Many-to-Many Relationships with ActiveRecord: Fixing the Incorrect Solution for Editors with No Roles

Identifying Duplicate Records in Rails 5: A SQL-Based Solution Using the `Exists` Clause