Join query in MongoDB

Date: 2022-03-21

This tutorial explains how to perform join queries in MongoDB using the $lookup aggregation operator. It uses Docker to set up MongoDB and demonstrates creating collections and performing a join operation similar to a SQL left outer join. The tutorial provides commands for setting up Docker, accessing the MongoDB shell, creating sample collections (batch and studentinfo), and executing the $lookup query. The process is illustrated with screenshots and commands.

Read more: https://examples.javacodegeeks.com/join-query-in-mongodb/