https://dev.MysqL.com/doc/MysqL-yum-repo-quick-guide/en/

在centos上面安装MysqL server 5.6

在/etc/yum.repo.d目录下建立一个文件 :

# Enable to use MysqL 5.6
[MysqL56-community]
name=MysqL 5.6 Community Server
baseurl=http://repo.MysqL.com/yum/MysqL-5.6-community/el/6/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-MysqL

然后运行：

sudo yum install MysqL-community-server

修改密码，root先登录后：
SET PASSWORD = PASSWORD('mypass');