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Similar Interview Questions: Multi-Stages Aggregation

Find similar interview questions and solutions on how to use multi-stage aggregations in MongoDB to filter, group, and analyze data based on specific conditions.

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Let’s discuss other variations of the same problem in this section.

In case you want to see the existing documents, please run the query below.

Query
db.customers.find(),
db.orders.find(),
db.products.find()

Brainteaser

The business insights team wants to understand how much each customer spends on average per order during the year 2025. They ask you to prepare a report ...