The real problems a graph database solves for you are the big ones: Where are the faults in the system? When you build connections into your data, your data reveals connections when you need them most.
In a graph model, the columns or rows in a relational database table are represented as properties of nodes.
It’s important to distinguish between a native graph database, and a graph layer that runs on top of a relational database.
By comparison, with a graph database, Hunger said, “it doesn’t matter if I have eight billion people in my database.