MongoDB interacts with Python

1. Preparatory work

Installing the Pymongo module

PIP3 Install Pymongo

2. Connect MongoDB

Import Pymongo

No authentication connection: client = Pymongo. Mongoclient ("Mongodb://host:port/dbname")

There is an authentication connection: client = Pymongo. Mongoclient ("Mongodb://username:[email protected]:p ort/dbname")

3. specifying databases and collections

db = Client.school

Collection = Db.class02

4. Inserting data

Insert Single data: Collection.insert_one ({dictionary})

Insert more than one data: Collection.insert_many ([{Dictionary 1},{Dictionary 2},...])

5. Updating data

Update single data: Collection.update_one ({condition},{"$set": {The key to update: The value to update}})

Update multiple data: Collection.update_many ({condition},{"$set": {The key to update: The value to update}})

6. Delete data

Delete Single data: Collection.delete_one ({condition})

Delete more than one data: Collection.delete_many ({condition})

MongoDB interacts with Python