Chapter 9
Wrapping Up

Now that we’ve made it through the databases, congratulations are in order! We hope that you’ve gained an appreciation for these seven challenging databases and their unique worldviews. If you use one in a project, we’ll be happy. And if you decide to use multiple databases, as you saw at the end of the Redis chapter, we’ll be ecstatic. We believe that the future of data management lies in the polyglot persistence model (using more than one database in a project), while the approach that sees a single general-purpose RDBMS as the only available design pattern slowly drifts away.

Let’s take this opportunity to see where our seven databases fit together in the greater database ecosystem. By this point, we have explored the details of each and mentioned a few commonalities and differences. You’ll see how they contribute to the vast and expanding landscape of data storage options.