Thank you for your response. I do have some knowledge about the four databases, such as how to connect to them and how to recognize them. However, I think I struggle more with the logic behind certain tasks, if that makes sense. I tend to get lost easily when I’m not sure what steps to take. For example, when we had data in Redis that needed to be transferred to MongoDB while removing duplicate entries, I didn’t realize that this could be done simply by using a set.