This video is part of my full-length course “MongoDB Essentials - Complete MongoDB Guide”.
In this course I teach all what you need to know about MongoDB and I start from the very beginning and explain how MongoDB works behind the scenes.
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Bogdan_Stashchuk
very good explanation of mongoDB aggregation. thanks for sharing this video.
AbhishekKumar-nfje
Could you please include the $lookup stage in this tutorial? $lookup seems to me a very important as its used for join queries analogous to SQL. The joins or $lookup operator helps implement many number of features in web sites and app. So it will very helpful to have lessons from you in $lookup usage in MongoDB aggregation pipeline.
anirbankarmakar
Hey, i appreciate your effort😍, could you help to find count and sum(of neseted field)
of multilevel children when we use $reduce
