在python中执行sql命令

Question

当我在我的覆盆子-pi中运行此代码时，没有任何事情发生，代码运行得很顺利，但没有结果

#!/usr/bin/python
import MySQLdb

db = MySQLdb.connect(host="localhost", # your host, usually localhost
                 user="root", # your username
                  passwd="raspberry", # your password
                  db="raspberry") # name of the data base


cur = db.cursor() 


cur.execute("UPDATE visitors SET nb_visits = nb_visits+1 WHERE id = 1")

Answer 1

在更改生效之前，您应该commit您的交易：

cur.execute("UPDATE visitors SET nb_visits = nb_visits+1 WHERE id = 1")
db.commit()