Show notes
MongoDB is a NoSQL database. Precisey speaking, it’s a
document-oriented database. It stores arbitrarily complex key-valueobjects. For example, in a singleCar object you can storeas much information as you want. Not only license plate or manufacturingyear. But also information about each individual part, history ofrepairs, insurance and all owners. No matter how much information youwant to keep, you just put that in a single, easily accessible document.Contrast that to relational databases, where each relationship has to bemodelled as a separate table. So the same Car would havebeen spread across tens of tables. Imagine all these SQL JOINs! Nowonder why MongoDB is one of the most popular databases.