官网
安装过程
gcc环境准备
命令：# yum -y install wget cmake gcc gcc-c++ ncurses ncurses-devel libaio-devel openssl openssl-devel
下载Yum Repository
命令： # wget https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
rpm
安装下载好的 Yum Repository
命令： # yum -y install mysql80-community-release-el7-3.noarch.rpm
安装rpm
安装MySQL服务器，安装将会花一点时间
命令： # yum -y install mysql-community-server
启动mysql
命令： # systemctl start mysqld.service
启动
查看Mysql状态
命令：# systemctl status mysqld.service
状态
重设MySQL密码
- 查看原来初始密码(先记录上下来，稍后要用)
命令：# grep "password" /var/log/mysqld.log
- 登录MySQL，重设密码
命令： # mysql -uroot -p（输入刚查出来的密码）
登入MySQL
*重设置密码(new_password： 自定义的密码)
命令： # ALTER USER 'root'@'localhost' IDENTIFIED BY 'new_password';
设置密码
- 新开窗口验证（为了避免密码错！）
创建新的其它用户且允许远程登录（用户所有权限）
命令： # create user dyiaw@'%' identified by 'your_password';
# ALTER USER 'dyiaw'@'%' IDENTIFIED BY 'your_password' PASSWORD EXPIRE NEVER;
# ALTER USER 'dyiaw'@'%' IDENTIFIED WITH mysql_native_password BY 'your_password';
# GRANT ALL PRIVILEGES ON *.* TO 'captainLii'@'%'WITH GRANT OPTION;
# FLUSH PRIVILEGES;
创建用户且允许远程登录
授权
开放3306端口
命令： # firewall-cmd --zone=public --add-port=3306/tcp --permanent
# firewall-cmd --reload
开放3306端口
使用Navicat测试
Navicat连接MySQL
删除Yum Repository, 因为每次 yum 操作都会自动更新，需要把这个卸载掉mysql80-community-release-el7-3.noarch
命令：# yum -y remove mysql80-community-release-el7-3.noarch
删除release-el7-3.noarch
常用命令补充
# systemctl start mysqld.service # 启动mysql服务
# systemctl stop mysqld.service # 停止mysql服务
# systemctl restart mysqld.service # 重启mysql服务
# systemctl status mysqld.service # 查看mysql服务当前状态
# systemctl enable mysqld.service # 设置mysql服务开机自启动
# systemctl disable mysqld.service # 停止mysql服务开机自启动
解决：1055错误
1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'information_schema.PROFILING.SEQ' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
在navicat的对应库中打开命令窗口运行以下命令：
命令：SET @@global.sql_mode ="STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION";
解决：1055错误
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