select "Add data" and select csv file I want to import
As you see... Korean Language is not presented properly
So. I googled by "MongoDB utf-8"
But it says default of MongoDB is utf-8....??
Then, it is obvious the csv file that I imported to MongoDB
was not "utf-8" from the very get-go
So I checked the python file for saving csv file
as you can see, I saved by "utf-8-sig", not "utf-8"
so I changed to "utf-8" and made new csv file, and imported it into MongoDB.
The result was...??