Mongodb does not seem to have the join function of sql. Reducing the redundancy of each table seems meaningless and affects the query efficiency.
Mongodb also has storage formats such as lists, which can realize different functions in the past.
This makes me a little confused and I don’t know how to design the table.
Excuse me, are there any general basic standards for mongodb design? Or which places/books can find good examples for reference?
There are still principles, mainly depending on your usage scenario. The concept of corresponding data table in mongoDB is called collection, and one data is called document.
You can have a lookThis ..