Aggregation Framework

The Aggregation Framework is MongoDB’s most powerful feature for data analysis. It allows you to process documents through a series of stages, similar to an assembly line, transforming raw data into meaningful insights using filtering, grouping, and reshaping.

Module Contents

1. The Aggregation Pipeline

Understand the assembly line model of MongoDB aggregation. Learn how to build multi-stage pipelines to transform your data.

2. Common Stages

Deep dive into the “Big 5” stages: $match, $group, $project, $unwind, and $sort. Master filtering, reshaping, and grouping data.

3. Advanced Patterns

Take your skills to the next level with $lookup (joins), $bucket (histograms), $facet (multi-pipeline analytics), and conditional logic.

Review & Cheat Sheet

Test your knowledge with interactive flashcards and grab a quick SQL-to-Aggregation cheat sheet.

Module Chapters