How is a graph database different from a multi-model database?

Question

MongoDB

I can't understand the fundamental difference. After all, both there and there we have a collection of documents, but in the case of a graph one, you can still walk on them. What then is the "multi-model" of different ArangoDBs?

Well, or here we take MongoDB. It turns out that he keeps documents, but you can’t walk on them like on a graph.

Answer 1

The column does not store documents and data. The facts are there. And link information. And the search is fundamentally different and they are designed for different cases.