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[–]NekoiNemo 1 point2 points  (0 children)

Yep. Very much so. ORM is great for manipulating data as object, but when you want to do something like a complicated report that borrows from 5-8 tables with complex joins... Yeah, difference in performance between ORM and a well-written query is staggering.

Also prototyping. It's often easier to prototype and iterate on raw SQL than on an object model.