Filter and Manipulate Data with Aggregations in MongoDB
Aggregations are one of the most powerful features of MongoDB. They allow you to filter, reshape and manipulate data in ways that go far beyond simple lookups. An aggregation pipeline is...
This framework actively processes documents: it takes raw records and prepares them step by step through a sequence of stages. Each stage transforms the documents it receives and passes the result to the next stage. Imagine a conveyor belt: documents enter one side, each station does its job, and the output is gradually shaped into something useful.
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What's inside
6 sections- 1 Table of Contents
- 2 Understand and explore Aggregation Pipelines
- 3 Filter and reshape with $match and $project
- 4 Summarize data with $group
- 5 Build and run multi stage pipelines
- 6 Quick reference of operators and courses
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