September 2018
Beginner to intermediate
192 pages
4h 37m
English
Content preview from MongoDB 4 Quick Start Guide
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Using the MongoDB Compass aggregation pipeline builder
The MongoDB Compass tool, introduced in Chapter 1, Introducing MongoDB, has an extremely useful feature which assists you in developing complex aggregation pipeline queries. To use Compass to build an aggregation pipeline query, you first need to start Compass and connect to MongoDB. You will then need to select the database and collection upon which you wish to perform an aggregation.
In the following example, we select the sweetscomplete database and the purchases collection. From the horizontal menu, we then select Aggregations. Here is how the screen appears so far:
We then turn our ...
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