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As a Ruby on Rails developer, it’s important to understand optimizing database queries to improve performance and enhance the user experience. Active Record, the Rails ORM (Object-Relational Mapping) tool, offers powerful features for querying databases efficiently.
Query optimization is a complex subject, with many books written on the subject. Here, we will explore a few techniques and some tips to optimize your Active Record queries and boost your application’s speed and responsiveness.
Use Selective Column Retrieval