By using Doctrine ORM you are committing deeply to the relational database world, with tables, joins, relational algebra and a lot of normalization. This talks discusses strategies to mix the relational world in Doctrine with concepts from the NoSQL world without having to use MongoDB, CouchDB or other new technologies. You will learn about denormalization, embedded documents with arrays and JSON Hashmaps using recent MySQL 5.7 or PostgreSQL features and how to integrate them with Doctrine ORM.