1、下载MySQL官方的mysql-connector-python-8.0.17-py3.7-windows-x86-64bit.msi,直接点击安装; 2、安装完毕后直接可以导入mysql.connnector模块 连接方式一: import mysql.connector cnx = mysql.connector.connect(us
1、下载MySQL官方的mysql-connector-python-8.0.17-py3.7-windows-x86-64bit.msi,直接点击安装;
2、安装完毕后直接可以导入mysql.connnector模块
连接方式一:
import mysql.connector cnx = mysql.connector.connect(user='scott', password='password', host='127.0.0.1', database='employees') cnx.close()
连接方式二:
from mysql.connector import (connection) cnx = connection.MySQLConnection(user='scott', password='password', host='127.0.0.1', database='employees') cnx.close()
用try~except获取错误代码:
import mysql.connector from mysql.connector import errorcode try: cnx = mysql.connector.connect(user='scott', database='employ') except mysql.connector.Error as err: if err.errno == errorcode.ER_ACCESS_DENIED_ERROR: print("Something is wrong with your user name or password") elif err.errno == errorcode.ER_BAD_DB_ERROR: print("Database does not exist") else: print(err) else: cnx.close()
3、获取数据库数据:
import mysql.connector myconn=mysql.connector.connect(host="localhost",user="lucy",passwd="123455",database="holiday") mycursor=myconn.cursor() my_cmd_sql="select * from birthday" a=mycursor.execute(my_cmd_sql) #执行SQL命令 for a in mycursor: #展示请求数据 print(a) mycursor.close() #指针必须关闭 myconn.close() #连接必须关闭
4、插入、更改和删除数据
跟上面一样的方法执行插入、更改和数据命令,这里有一点区别,execute语句后必须调用连接的.commit()方法确认执行。
另外:指针一定要关闭,否则容易引起
mysql 2014 error (2014) Commands out of sync; You can't run this command now
总结
以上所述是小编给大家介绍的python3连接MySQL8.0的两种方式,希望对大家有所帮助,也非常感谢大家对易盾网络网站的支持!