Mysql5.7数据库安装

安装：

1. wget http://repo.mysql.com/mysql57-community-release-el7-9.noarch.rpm

2. sudo rpm -ivh mysql57-community-release-el7-9.noarch.rpm

3. yum check-update

4. yum update

5. yum install mysql mysql-server

6. systemctl start mysqld 启动

更改密码：

   查看默认密码  grep 'temporary password' /var/log/mysqld.log

   设置新密码 

   mysql -u root -p

   set password for root@localhost = password('1235678!');

   使用新密码登录，设置授权

   use mysql;

   grant all privileges on *.* to root@'%' identified by "12345678!";

   flush privileges;