Update - MongoDB

Update

db.students.updateOne(
{ "FirstName": "Michael" }, 
	{
		$set: { "Address": "Borselstraße 7, 22765 Hamburg" } 
	}
)

db.products.updateOne({_id:1}, {$set: {stock: 32}})

$set creates new Field

Similarly, you can use **updateMany()**with a query operator.

https://docs.mongodb.com/manual/tutorial/update-documents/

---

$ -> Operators/Functions

-> füge aktuelles datum dem datensatz zu:

$currentDate: {"last_modified": true}

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Delete Field - $unset

db.students.updateMany( {}, { $unset: {"Adress":""} })

https://docs.mongodb.com/manual/reference/operator/update/unset/