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目录
4)关闭Dos窗口,使用Navicat数据库管理系统进行测试登
MySQL是一个关系型数据库管理系统,由瑞典MySQL AB 公司开发,属于 Oracle 旗下产品。MySQL 是最流行的关系型数据库管理系统之一,在 WEB 应用方面,MySQL是最好的 RDBMS (Relational Database Management System,关系数据库管理系统) 应用软件之一。
MySQL是一种关系型数据库管理系统,关系数据库将数据保存在不同的表中,而不是将所有数据放在一个大仓库内,这样就增加了速度并提高了灵活性。
MySQL所使用的 SQL 语言是用于访问数据库的最常用标准化语言。MySQL 软件采用了双授权政策,分为社区版和商业版,由于其体积小、速度快、总体拥有成本低,尤其是开放源码这一特点,一般中小型和大型网站的开发都选择 MySQL 作为网站数据库。
而Mysql8.几的版本是一个较新的版本,里面修改了密码的加密方式等等,导致使用原本的修改密码的方式并不适用新版本。废话不多说,我们现在直接开整。
1)进入到mysql的安装bin目录(拿我自己的电脑举例)
注意:管理员身份打开dos窗口
- C:\Users\lenovo>cd C:\Program Files\MySQL\MySQL Server 8.0\bin
- C:\Program Files\MySQL\MySQL Server 8.0\bin>net stop mysql
- C:\Program Files\MySQL\MySQL Server 8.0\bin>mysqld --console --skip-grant-tables --shared-memory
mysql8.0.22改变了密码加密方式,所以先进行修改密码加密方式
- C:\Users\lenovo>mysql -u root -p
- Enter password: ******
- Welcome to the MySQL monitor. Commands end with ; or \g.
- Your MySQL connection id is 27
- Server version: 8.0.22 MySQL Community Server - GPL
-
- Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.
-
- Oracle is a registered trademark of Oracle Corporation and/or its
- affiliates. Other names may be trademarks of their respective
- owners.
-
- Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
-
- mysql> select host,user,plugin,authentication_string from mysql.user;
- +-----------+---------------+-----------------------+------------------------------------------------------------------------+
- | host | user | plugin | authentication_string
- |
- +-----------+---------------+-----------------------+------------------------------------------------------------------------+
- | localhost | mysql.session | caching_sha2_password | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED |
- | localhost | mysql.sys | caching_sha2_password | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED |
- | localhost | root | mysql_native_password | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9
- |
- +-----------+---------------+-----------------------+------------------------------------------------------------------------+
- 3 rows in set (0.00 sec)
- #修改加密方式
- mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'password' PASSWORD EXPIRE NEVER;
- Query OK, 0 rows affected (0.01 sec)
- #修改密码
- mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123456';
- Query OK, 0 rows affected (0.01 sec)
- #修改之后记得刷新权限
- FLUSH PRIVILEGES;
- #如果上述步骤出现ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement
- mysql> flush privileges;
- #再刷新下权限即可
- mysql> exit
- Bye
- C:\Users\lenovo>mysql -u root -p
- Enter password: ******
- Welcome to the MySQL monitor. Commands end with ; or \g.
- Your MySQL connection id is 27
- Server version: 8.0.22 MySQL Community Server - GPL
-
- Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.
-
- Oracle is a registered trademark of Oracle Corporation and/or its
- affiliates. Other names may be trademarks of their respective
- owners.
-
- Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
或者普通dos窗口进行登录,一般情况下到这基本就可以了,但不排除有人会出现160
- #停止mysql服务 同为管理员在安装目录
- net stop mysql
- C:\Program Files\MySQL\MySQL Server 8.0\bin>mysqld.exe --upgrade=FORCE
- ^C
- #中间可能会卡着不动,直接ctrl c给停止了就行
- C:\Program Files\MySQL\MySQL Server 8.0\bin>net start mysql
- MySQL 服务正在启动 .
- MySQL 服务已经启动成功。
5)在进行测试链接,发现无论是cmd窗口还是navicat都可以正常使用了。
大功告成!
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