MongoDB Update Method

Update/modify multiple documents of a collection. The documents are select by using a filter, and all the documents matching the criteria are updated by this method. updateMany() will update all the documents matching the filter criteria.

Update/modify a single existing document in a collection. The selection of the document is done by using some filters. If the collection does not already exist, then we have pass “upsert” option, if we want to create a new document.