You're welcome! No, I don't think MongpDB is useless, but I don't understand it at all. That's why I started this discussion.
So, some of the comments here suggest that once a database is split up (which is often the case) you lose foreign keys anyway. And so, they say, MongoDB is better. What would you say to that?
Also, since you teach MongoDB, there has to be something to it. What is it good for? :)
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