this post was submitted on 29 Mar 2024
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The classic example is the N+1 query pattern, where the number of generated queries is linear in the number of rows returned by the first query.
This is not a problem for a modern ORM, JOINs are supported by most ORMs I've worked with for many years.
This will get all the cars and their associated wheels in 1 single query by performing a JOIN operation using Entity Framework Core, assuming there's a FK for Wheel to Car.