MySQL 下载与安装 ( Linux 平台 )

在linux 平台可以多种方式安装 MySQL :

1. 基于rpm方式安装

详细文档 : https://blog.csdn.net/u010476739/article/details/100083959

2. 通过 yum 命令安装

yum install mysql-server

相关命令

启动服务

systemctl start mysqld

停止

systemctl stop mysqld

查看状态

systemctl status mysqld

注意事项

如果之前安装过 MySql 先删除

yum remove mysqld

删除 /var/lib目录下的mysql目录 避免初始化失败

rm -rf /var/lib/mysql

连接 MySQL

1. 查看初始化密码

grep "password" /var/log/mysqld.log
#  A temporary password is generated for root@localhost: gHHHpJl

2. 连接 mysql

mysql -u root - p 
passwowd:输入临时密码

# 成功连接

修改初始密码

注意密码强度!

## 8.4 前 MYSQL_NATIVE_PASSWORD
ALTER USER 'root'@'localhost' IDENTIFIED WITH MYSQL_NATIVE_PASSWORD BY '新密码';
# ALTER USER 'root'@'localhost' IDENTIFIED WITH MYSQL_NATIVE_PASSWORD BY '35%TGh&*90';

## 8.4 新版本 caching_sha2_password
ALTER USER 'root'@'localhost' IDENTIFIED WITH caching_sha2_password BY '新密码';

刷新权限

FLUSH PRIVILEGES;