***Previously in MongoDB Q&A, we looked at [agile development and MongoDB](https://www.mongodb.com/blog/post/mongodb-qa-whats-the-deal-with-nonrelational-databases-and-agile-software-development). This time, it's all about data integrity...***
I've been doing a lot of reading lately on relational vs [non-relational databases](https://www.mongodb.com/scale/what-is-a-non-relational-database), investigating the typical reasons why you might pick one over the other. A quick Google search of "relational vs non-relational databases" returns over 18 million results. Digging into that massive pile of results brought up a few key themes around why you would select a non-relational database: horizontal scaling, performance, managing unstructured and polymorphic data, and minimal upfront planning.
↧