What are some advanced features of Ruby ORMs?
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What are some advanced features of Ruby ORMs?
Ruby ORMs like ActiveRecord and Sequel offer advanced features such as eager loading, scopes, and custom SQL queries.
Can you explain eager loading and why it's important?
Eager loading is a technique to load associated records in a single query, reducing the number of database calls and improving performance.
What are scopes in Ruby ORMs?
Scopes are custom query methods that allow you to encapsulate common queries, making your code cleaner and more reusable.
How can I write custom SQL queries in ActiveRecord?
You can use the find_by_sql method in ActiveRecord to execute custom SQL queries and map the results to your models.
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