NoSQL is a catch-all term that covers a lot of different types of data storage. Is it really helpful to group them together by one thing they don't have? Think about it like this: my toaster is as much NoSQL as any database! So, how can we make more sense of this new breed of database management systems?

In this talk I cover the four main data models that have been part of the past ten years' NoSQL movement: key-value, document, columnar and graph. I explain how they differ and when you might want to use each one.