Aggregation queries are a very common way to get summarized data by counting or adding features to our dataset. MongoDB provides us with different ways to get the aggregated data quickly and easily. In this chapter, we will explore the basic features of MongoDB as well as two ways to get summarized data using the
group function and the aggregation framework.
In this chapter we will cover:
In Chapter 2, Working with Data, we introduced the NoSQL (Not Only ...