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mysql重置密码

程序员文章站 2022-05-04 21:28:30
1.命令行进入安装mysql的bin目录下;2.执行mysqld --skip-grant-tables命令跳过登录验证;3.执行msyql命令无需密码登录;4.执行show databases;命令查询所有数据库;5.使用名称为“mysql”的数据库(use mysql;);6.执行show ta ......

1.命令行进入安装mysql的bin目录下;
2.执行mysqld --skip-grant-tables命令跳过登录验证;
3.执行msyql命令无需密码登录;
4.执行show databases;命令查询所有数据库;
5.使用名称为“mysql”的数据库(use mysql;);
6.执行show tables;sql语句查询“mysql”数据库下的所有表;
7.执行select user,host,authentication_string from user;查询用户名和密码;
8.执行update user set password=password('你的密码') where user='root' and host='localhost';语句更改root密码;

以上方法改密码会出现结束mysql进程后,第二次再进行登录会报错(权限问题),解决方法如下:
1.执行net start mysql 开启mysql数据库服务;
2.执行alter user 'root'@'localhost' identified by '自己的密码'; 修改密码;
3.执行flush privileges;命令刷新权限;
4.执行help contents命令查询修改信息;
5.弹出信息如下,则成功:
You asked for help about help category: "Contents"

For more information, type 'help <item>', where <item> is one of the following

categories:

Account Management

Administration

Compound Statements

Data Definition

Data Manipulation

Data Types

Functions

Functions and Modifiers for Use with GROUP BY

Geographic Features

Help Metadata

Language Structure

Plugins

Procedures

Storage Engines

Table Maintenance

Transactions

User-Defined Functions

Utility

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