MongoDB 更新一

使用MongoDB更新文档

python
from pymongo import MongoClient
# 创建MongoDB客户端
client = MongoClient('mongodb://localhost:27017/')
# 连接到数据库
db = client['mydatabase']

python
# 选择集合
collection = db['mycollection']
# 更新文档
query = { 'name': 'Alice' }
new_values = { '$set': { 'age': 30 } }
collection.update_one(query, new_values)

python
# 更新文档
query = { 'status': 'unverified' }
new_values = { '$set': { 'status': 'verified' } }
collection.update_many(query, new_values)

python
query = { 'name': 'Bob' }
new_values = { '$inc': { 'age': 1 } }
collection.update_one(query, new_values)

python
query = { 'name': 'Charlie' }
new_values = { '$unset': { 'age': '' } }
collection.update_one(query, new_values)

python
query = { 'name': 'Dave' }
new_values = { '$rename': { 'age': 'new_age' } }
collection.update_one(query, new_values)