yum安装配置MySQL数据库

yum install wget -y

wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm

yum localinstall mysql57-community-release-el7-8.noarch.rpm -y

yum repolist enabled | grep "mysql.*-community.*"

yum install mysql-community-server -y

systemctl start mysqld

systemctl status mysqld

systemctl enable mysqld

systemctl daemon-reload	

grep ‘temporary password‘ /var/log/mysqld.log

登陆数据库 

mysql -uroot -p

修改默认密码

mysql> SET PASSWORD = PASSWORD(‘Lenovo@123‘);

Lenvoo@123是你的新密码

如何解决ERROR 1819 (HY000): Your password does not satisfy the current policy requirements呢？ 这里直接提供解决方案文末有详细的说明

必须修改两个全局参数：

首先，修改validate_password_policy参数的值

set global validate_password_policy=0;

再修改密码的长度

set global validate_password_length=1;

再次执行修改密码就可以了

ALTER USER ‘root‘@‘localhost‘ IDENTIFIED BY ‘Lenovo@123‘;

GRANT ALL PRIVILEGES ON *.* TO ‘root‘@‘%‘ IDENTIFIED BY ‘Lenovo@123‘ WITH GRANT OPTION;