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mac平台安装mysql有两种方式：
1）使用官方度dmg安装；
2）使用homebrew方式
本人比较推荐使用homebrew方式安装，省去大多数的麻烦，使用官方dmg方式推荐到官网下载：http://dev.mysql.com/downloads/mysql/
安装：
sudo brew install mysql
启动：
sudo mysql.server start
有可能会遇到下面这个问题：
Starting MySQL .. ERROR! The server quit without updating PID file (/usr/local/var/mysql/Joshs-MacBook-Pro.local.pid).
其实就是改下文件权限：
adeMacBook-Pro:~ apple$ sudo chown -R mysql /usr/local/var/mysql/
adeMacBook-Pro:~ apple$ sudo mysql.server start
Starting MySQL
. SUCCESS!
有关这个问题的讨论：
http://stackoverflow.com/questions/12627604/mysql-start-up-issues-error-the-server-quit-without-updating-pid-file
http://stackoverflow.com/questions/4963171/mysql-server-startup-error-the-server-quit-without-updating-pid-file
http://segmentfault.com/a/1190000000438233
登陆并且使用如下：
adeMacBook-Pro:~ apple$ mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.6.23 Homebrew Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement. mysql>
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原文地址：http://www.cnblogs.com/super-d2/p/4537174.html
