MongoDB Delete

Delete Document

To delete one document, we use the delete_one() method.

The first parameter of the delete_one() method is a query object defining which document to delete.

Note: If the query finds more than one document, only the first occurrence is deleted.

Example

  import pymongo

myclient = pymongo.MongoClient("mongodb://localhost:27017/")
  mydb = myclient["mydatabase"]
mycol = mydb["customers"]

myquery = { "address": "Mountain 21" }

mycol.delete_one(myquery)

Delete Many Documents

To delete more than one document, use the delete_many() method.

The first parameter of the delete_many() method is a query object defining which documents to delete.

Example

  import pymongo

myclient = pymongo.MongoClient("mongodb://localhost:27017/")
  mydb = myclient["mydatabase"]
mycol = mydb["customers"]

myquery = { "address": {"$regex": "^S"} }

x = mycol.delete_many(myquery)

print(x.deleted_count, " documents
  deleted.")

Delete All Documents in a Collection

To delete all documents in a collection, pass an empty query object to the delete_many() method:

Example

  import pymongo

myclient = pymongo.MongoClient("mongodb://localhost:27017/")
  mydb = myclient["mydatabase"]
mycol = mydb["customers"]

x = mycol.delete_many({})

print(x.deleted_count, " documents
  deleted.")