1,版本 mysql >=5.6
2,安装 mysql yum源 wget http://repo.mysql.com/mysql-community-release-el7.rpm
rpm -Uvh mysql-community-release-el7.rpm
3,安装 yum install -y mysql-server
4,配置 #开机启动 systemctl enable mysqld.service
#初始化用户密码 mysql_secure_installation
#修改配置文件,去掉sql-mode 中的STRICT_TRANS_TABLES(严谨模式)