Hi guys, I’m quite new to MongoDB. I read a blog post about best practices in designing schema in MongoDB. One way to handle one-to-many relationship is to reference it and this is the example from the blog post. { "name": "left-handed smoke shifter", "manufacturer": "Acme Corp", "catal…

[image] Theodorus_Andi_Gunawan: That did not work you need to be careful with opening and closing of curly and square brackets. square brackets [] are for arrays, curlies {} are for objects. your $lookup is inside the brackets of $match hence the error “must contain one field” each pipeline …

What is the best way to $lookup / "join" one-to-many collections with array of references in MongoDB?

Working with Data

Theodorus_Andi_Gunawan (Theodorus Andi Gunawan) July 5, 2022, 9:40pm 6

How do I edit the post?