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MongoDB 201: Lesson 3, Exercise 2 » Grouping the documents in the aggregation pipeline
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How to group documents in Studio 3T using its aggregation pipeline.
In this exercise, you will add the second stage to the pipeline. This stage is based on the $group aggregate operator, which lets you group the documents in the pipeline based on a specific field.
In this exercise, you will add the second stage to the pipeline. This stage is based on the $group aggregate operator, which lets you group the documents in the pipeline based on a specific field.
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