centos7中用yum安装mysql8.0.26版本

要在CentOS 7上使用yum安装MySQL 8.0.26，请按照以下步骤操作：

1. 添加MySQL存储库

sudo rpm -Uvh https://repo.mysql.com/mysql80-community-release-el7-3.noarch.rpm

2. 安装MySQL服务器

sudo yum install mysql-community-server

3. 启动MySQL服务

sudo systemctl start mysqld

4. 设置MySQL开机自启

sudo systemctl enable mysqld

5. 查看MySQL服务状态

sudo systemctl status mysqld

6. 获取MySQL初始密码

sudo grep 'temporary password' /var/log/mysqld.log

7. 登录MySQL

mysql -u root -p

8. 输入初始密码

9. 修改密码

ALTER USER 'root'@'localhost' IDENTIFIED BY 'new_password';

10. 退出MySQL

exit

这样就完成了在CentOS 7上用yum安装MySQL 8.0.26的步骤。