17.Delete Methods-官方文档摘录

介绍delete的方法

MongoDB provides the following methods to delete documents of a collection:

db.collection.deleteOne()	Delete at most a single document that match a specified filter even though multiple documents may match the specified filter. New in version 3.2.
db.collection.deleteMany()	Delete all documents that match a specified filter. New in version 3.2.
db.collection.remove()	Delete a single document or all documents that match a specified filter.

Additional Methods

The following methods can also delete documents from a collection:

• db.collection.findOneAndDelete().

  findOneAndDelete() provides a sort option. The option allows for the deletion of the first document sorted by the specified order.

• db.collection.findAndModify().

  db.collection.findAndModify() provides a sort option. The option allows for the deletion of the first document sorted by the specified order.

• db.collection.bulkWrite().

See the individual reference pages for the methods for more information and examples.