What are the Update Methods Available in MongoDB?

The following techniques are available in MongoDB for editing documents within a collection:

db.collection.updateOne() — updates a maximum of one document that meets a given filter, even though the filter may be met by several documents.

db.collection.updateMany() — Update every document that fits the given filter.

db.collection.replaceOne()- replaces, out of the possibility of several documents matching the supplied filter, at most one document that matches the filter.

Additional Methods

Documents from a collection can also be updated using the following techniques:

• db.collection.findOneAndReplace()
• db.collection.findAndModify()
• db.collection.findOneAndUpdate()
• db.collection.bulkWrite()

For further details and examples, look to the methods’ respective reference pages.