python之mysql

一、开发文档

https://mysqlclient.readthedocs.io

二、安装

pip install mysqlclient==1.3.12

三、获取记录

fetchone     fetchmany      fetchall

四、简单实例

import MySQLdb
import pprint

#创建一个connection对象，代表了一个数据库连接
connection = MySQLdb.connect(
                    host="192.168.2.244",
                    user="root",
                    passwd="123456",
                    db="crodigyrtu",
                    charset="utf8")

#返回一个cursor对象
c = connection.cursor()

#调用cursor对象的exeute方法查表

c.execute("SELECT * FROM room_device")
rows = c.fetchmany(c.rowcount)   #c.rowcount返回获取的行数
pprint.pprint(rows)


#调用cursor对象的exeute方法增加数据
c.execute("INSERT INTO room_device ···········")

#一定要执行commit才能插入成功
connection.commit()


#调用cursor对象的exeute方法删除数据
c.execute("DELETE FROM room_device ···········")

#一定要执行commit才能插入成功
connection.commit()