What is the difference between save and insert in Mongo DB?

Question

I want to know what is the exact difference between "save" and "insert" command in MongoDB? For me, both syntaxes look the same:

db.users.save({username:"google",password:"google123"})

db.users.insert({username:"google",password:"google123"})

Please guide me:-)

Answer 1

The instances that you have provided, the action for both save and insert is essentially the same because as the document provided in 'save' has no _id field.

But the main difference between 'save' and 'insert' command is that the 'save' command can insert or update a document whereas 'insert' only performs the insertion.

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