2 Linux Mysql 的安装和启动(Centos)

1 查看Linux发行版本

[root@typecodes ~]# cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)

2 安装MySQL的Yum Repository

文档详见 A Quick Guide to Using the MySQL Yum Repository

3 启动数据库

[root@typecodes ~]# systemctl start  mysqld.service

4 获取初始密码

使用YUM安装并启动MySQL服务后，MySQL进程会自动在进程日志中打印root用户的初始密码：

grep "password" /var/log/mysqld.log

5 修改root用户密码

mysql -uroot -p
ALTER USER 'root'@'localhost' IDENTIFIED BY 'new password';

Tips：解决 MySQL 5.7 中 Your password does not satisfy the current policy requirements. 问题

6 创建用户并为用户设置权限

CREATE USER 'dev' @'%' INDENTIFIED BY 'password';
grant all *.* to 'dev'@'%' INDENTIFIED BY 'password';
FLUSH PRIVILEGES;