Summary

The MongoDB Node.js driver provides methods to insert, access, modify, and remove documents from collections. You can use insert(), save(), and even update() with upsert to insert documents into a database. You can use update(), save(), and findAndModify() to update existing documents. You can use the remove() and findAndRemove() methods to delete documents.

You can control changes to documents in a database in several ways, such as defining the write concern, using journaling, and using other settings to control the behavior of the write request and response. Also, the update structure that MongoDB uses to update documents is much easier to implement and maintain than the long, complex query strings in SQL.