import pymysql# 连接到MySQL数据库connection = pymysql.connect (host='localhost', user='root', password='password', db='test_db')# 创建游标对象cursor = connection.cursor ()# 使用参数化查询sql_query = "SELECT * FROM users WHER
1. 生产环境永远别用bind-address=0.0.0.0——黑客扫IP工具1分钟发现开放端口 2. 禁用'user'@'%'这种通配账号——某电商因此被拖库300万用户数据 3. 每季度审计权限表:执行SELECT user,host FROM mysql.user;清理僵尸账号 最新数据:2025年未设IP白名...
mysql>updatemysql.usersetpassword=password(’123456′)whereUser=’test1′andHost=’localhost’; mysql>flushprivileges; 4.删除用户 mysql>deletefromuserwhereuser=’test2′andhost=’localhost’; mysql>flushprivileges; 5.删除数据库和删除表 mysql>dropdatabase数据库名; mysql>droptable表名; 6.删除账户及...
--方法1#(推荐) drop user 'oldboy'@'10.0.0.%' --方法2 delete from mysql.user where user='oldboy' and 'host'='10.0.0.%' flush privileges --这种方式删除需要使用 --创建准系统超级管理员 grant all on *.* to 'sys'@'localhost' identified by '123' 8.找回密码 --skip-grant-talbes ...
CREATE USER 'jeffrey'@'localhost' IDENTIFIED BY 'password'; The host name part of the account name, if omitted, defaults to '%'. You should be aware that, while MySQL 8.4 treats grants made to such a user as though they had been granted to 'user'@'localhost', this behavior is deprec...
CREATE USER'remote_user'@'%'IDENTIFIED BY'your_password'; GRANT ALL PRIVILEGES ON*.*TO'remote_user'@'%'WITH GRANT OPTION; FLUSH PRIVILEGES; ‘remote_user’@‘%’ 表示任何 IP 都可以使用 remote_user 登录。 若只允许特定 IP,可替换为 ‘remote_user’@‘192.168.1.100’。
mysql> CREATE USER 'frank'@'%' IDENTIFIED BY '1q2w3e'; 2.删除用户 mysql> DROP USER 'myuser'@'host'; 3.授权用户从远程访问数据库 如果手里的帐号不允许从远程登陆,只能在localhost登录,现在想要授权该用户远程访问mysql。可以通过本地以root登录mysql以后,进行修改。更改数据库“mysql"里的”user"表里...
CREATEUSER'jeffrey'@'localhost'IDENTIFIEDBY'password'; The host name part of the account name, if omitted, defaults to'%'. Eachuservalue naming an account may be followed by an optionalauth_optionvalue that indicates how the account authenticates. These values enable account authentication plugins...
ALTER USER 'newuser'@'localhost' HOST '192.168.1.100'; 1. 这将限制用户newuser只能从IP地址192.168.1.100连接到数据库。 删除用户: 删除用户可以通过DROP USER语句实现。 DROP USER 'newuser'@'localhost'; 1. 这将删除名为newuser的用户及其所有权限。
| +---+---+ 5 rows in set (0.00 sec) mysql> create user test@'%',app@'%' identified by 'Root@123'; ERROR 1819 (HY000): Your password does not satisfy the current policy requirements mysql> select user,host from mysql.user;(app@'%'创建成功,test@'%'创建) +---+---+ | use...