MongoDB Tutorial for Beginners (2022) - Aggregate Records in MongoDB

The video tutorial explains how to use the aggregate method in MongoDB to process and group data from multiple documents into a single result. It demonstrates setting up databases and collections, and using aggregation to count the number of employees in each zone. The tutorial provides a step-by-step guide on writing and executing an aggregation query using the group and sum methods to achieve the desired results.

What are the key fields present in the employee documents mentioned in the text?

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Explain how the group operation works in the context of MongoDB aggregation.

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