It is good advice to learn SQL. I would suggest enabling the following two configurations in any Rails project. It should be a must in any new Rails project IM

It is good advice to learn SQL. I would suggest enabling the following two configurations in any Rails project. It should be a must in any new Rails project IMO: 1. Enable `config.active_record.strict_loading_by_default` - this will raise ActiveRecord::StrictLoadingViolationError on almost all cases of N+1 thus forcing the developer to fix it 2. Set `config.active_record.warn_on_records_fetched_greater_than` so that you know when someone will load a lot of records, thus forcing to paginate, load only what is needed ... I think starting with these two will help mitigate a lot of problems even when using ORM in Rails.