The choice between SQL/NoSQL should be made based on the features of each and what you need, and it's definitely not an exclusive choice. Remeber: NoSQL == "No

The choice between SQL/NoSQL should be made based on the features of each and what you need, and it's definitely not an exclusive choice. Remeber: NoSQL == "Not Only SQL" Use all tools where they make sense. Construction workers use both nails and screws, even though they do much the same thing. It's just a question of what's appropriate for a given task. Finally, if it's only a question of performance, I'd suggest tabling that question until it's a real issue. Scale when you need to, not before. Only once you have a "real" system with scaling stress can you actually see what needs to be optimized. Before that, it's all theory.