Aggregation Pipeline

The Aggregation Pipeline is a powerful feature in databases, particularly MongoDB, that processes data through a series of stages. Each stage transforms the data in some way, such as filtering it, grouping it, or sorting it. Think of it like a factory assembly line where raw materials (data) are gradually refined into a finished product (an insightful result). By linking these stages together, users can perform complex data operations and extract meaningful information efficiently, making it ideal for generating reports and analyzing trends without heavy programming.