安裝
yum install mysql-community-libs-8.0.13-1.el7.x86_64.rpm
yum install mysql-community-libs-compat-8.0.13-1.el7.x86_64.rpm
yum install mysql-community-client-8.0.13-1.el7.x86_64.rpm
yum install mysql-community-server-8.0.13-1.el7.x86_64.rpm

設置數據庫
初次安裝沒進去，在 /etc/my.cnf 中添加 skip-grant-tables, 使用 mysql -uroot 直接進入數據庫，
修改 root 賬號密碼：
alter user 'root'[[[[[[[[[[[[[[[@](https://learnku.com/users/31906)](https://learnku.com/users/29000)](https://learnku.com/users/27102)](https://learnku.com/users/25661)](https://learnku.com/users/19319)](https://learnku.com/users/10240)](https://learnku.com/users/8907)](https://learnku.com/users/8278)](https://learnku.com/users/31906)](https://learnku.com/users/29000)](https://learnku.com/users/27102)](https://learnku.com/users/25661)](https://learnku.com/users/19319)](https://learnku.com/users/10240)](https://learnku.com/users/8907)'localhost' identified by '**';
mysql 8.0 以后默認加密方式跟 5.7 不一樣 ：
ALTER USER 'root'[[[[[[[[[[[[[[[@](https://learnku.com/users/31906)](https://learnku.com/users/29000)](https://learnku.com/users/27102)](https://learnku.com/users/25661)](https://learnku.com/users/19319)](https://learnku.com/users/10240)](https://learnku.com/users/8907)](https://learnku.com/users/8278)](https://learnku.com/users/31906)](https://learnku.com/users/29000)](https://learnku.com/users/27102)](https://learnku.com/users/25661)](https://learnku.com/users/19319)](https://learnku.com/users/10240)](https://learnku.com/users/8907)'localhost' IDENTIFIED BY '**' PASSWORD EXPIRE NEVER; // 修改用戶永不過期
ALTER USER 'root'[[[[[[[[[[[[[[[@](https://learnku.com/users/31906)](https://learnku.com/users/29000)](https://learnku.com/users/27102)](https://learnku.com/users/25661)](https://learnku.com/users/19319)](https://learnku.com/users/10240)](https://learnku.com/users/8907)](https://learnku.com/users/8278)](https://learnku.com/users/31906)](https://learnku.com/users/29000)](https://learnku.com/users/27102)](https://learnku.com/users/25661)](https://learnku.com/users/19319)](https://learnku.com/users/10240)](https://learnku.com/users/8907)'localhost' IDENTIFIED WITH mysql_native_password BY '***';// 更新一下用戶的密碼加密方式，修改密碼
flush privileges; // 執行完刷新權限

創建新用戶
CREATE USER smile[[[[[[[[[[[[[[[@](https://learnku.com/users/31906)](https://learnku.com/users/29000)](https://learnku.com/users/27102)](https://learnku.com/users/25661)](https://learnku.com/users/19319)](https://learnku.com/users/10240)](https://learnku.com/users/8907)](https://learnku.com/users/8278)](https://learnku.com/users/31906)](https://learnku.com/users/29000)](https://learnku.com/users/27102)](https://learnku.com/users/25661)](https://learnku.com/users/19319)](https://learnku.com/users/10240)](https://learnku.com/users/8907)% IDENTIFIED BY 'passowrd'; //# 創建賬號密碼
GRANT ALL ON . TO smile[[[[[[[[[[[[[[[@](https://learnku.com/users/31906)](https://learnku.com/users/29000)](https://learnku.com/users/27102)](https://learnku.com/users/25661)](https://learnku.com/users/19319)](https://learnku.com/users/10240)](https://learnku.com/users/8907)](https://learnku.com/users/8278)](https://learnku.com/users/31906)](https://learnku.com/users/29000)](https://learnku.com/users/27102)](https://learnku.com/users/25661)](https://learnku.com/users/19319)](https://learnku.com/users/10240)](https://learnku.com/users/8907)% WITH GRANT OPTION; // 授予遠程登錄權限（. 遠程訪問所有數據）
REVOKE all privileges ON databasename.tablename FROM 'username'[[[[[[[[[[[[[[[@](https://learnku.com/users/31906)](https://learnku.com/users/29000)](https://learnku.com/users/27102)](https://learnku.com/users/25661)](https://learnku.com/users/19319)](https://learnku.com/users/10240)](https://learnku.com/users/8907)](https://learnku.com/users/8278)](https://learnku.com/users/31906)](https://learnku.com/users/29000)](https://learnku.com/users/27102)](https://learnku.com/users/25661)](https://learnku.com/users/19319)](https://learnku.com/users/10240)](https://learnku.com/users/8907)'host'; // 刪除某些數據權限
flush privileges;// 刷新權限
// 不常用的 --- 創建過期用戶
CREATE USER smile[[[[[[[[[[[[[[[@](https://learnku.com/users/31906)](https://learnku.com/users/29000)](https://learnku.com/users/27102)](https://learnku.com/users/25661)](https://learnku.com/users/19319)](https://learnku.com/users/10240)](https://learnku.com/users/8907)](https://learnku.com/users/8278)](https://learnku.com/users/31906)](https://learnku.com/users/29000)](https://learnku.com/users/27102)](https://learnku.com/users/25661)](https://learnku.com/users/19319)](https://learnku.com/users/10240)](https://learnku.com/users/8907)% IDENTIFIED BY '***' PASSWORD EXPIRE INTERVAL 90 DAY;
// 數據庫搞定
service mysqld start restart stop