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Aggregation Pipeline Lab

🤖 AI Lab Assistant

English
中文

Intro
Prerequisites
The Aggregation Pipeline
Simple Pipelines
Using Arrays
Counting and Sorting
Lookups / Joins
Grouping Results
- 👐 Group
Modifying Results
Exporting Data
📘 Lecture material
🎯 Summary

Grouping Results

Grouping Results

Grouping.

📄️ 👐 Group

We can sum all the pages for all books in each year:

🦸‍♂️ Advanced lookups

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