MongoDB - Update Document
MongoDB's update() and save() methods are used to update document into a collection.
MongoDB Update() Method
The update() method updates the values in the existing document.Syntax
There are following basic syntax of update() methodSyntax
The basic syntax of update() method is as follows −
>db.COLLECTION_NAME.update(SELECTION_CRITERIA, UPDATED_DATA)
MongoDB Save() Method
The save() method replaces the existing document with the new document passed in the save() method.
Syntax
The basic syntax of MongoDB save() method is shown below −
>db.COLLECTION_NAME.save({_id:ObjectId(),NEW_DATA})