maybe this is not a technical question but I bet here are many experienced developers that can help me answering that
thanks
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maybe this is not a technical question but I bet here are many experienced developers that can help me answering that
thanks
A DAO layer is essentially an abstraction like Sajit says. However I disagree with his interpretation. The point of abstracting something to achieve a goal – usually the simplification of some more complex use case.
You could easily create a DAO layer that also provides more functionality than simply doing application entity – data entity mapping. It could provide caching, optimisation, translation, resiliency etc. So There is no reason why it could not offer the ability to better scale your application.
Ultimately is depends on terms – what does scaling mean to your application? More/faster ??? etc.