MongoDB: MongoDB Aggregation Pipeline Made Simple: Grouping, Averages & Counting Explained

Learn to group, calculate average age, and count favorite fruits using MongoDB's powerful aggregation pipeline The MongoDB Aggregation Pipeline is a powerful framework that processes data records and transforms them into aggregated results. It works by passing documents through a multi-stage pipeline where each stage transforms the documents as they pass through. Each stage performs a specific operation such as filtering, grouping, sorting, reshaping, and more. Before diving into real examples, let's clarify a few key terms: