osx中安装mysql数据库

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本文详细介绍如何在Mac上安装MySQL，并提供启动、关闭服务的方法。此外，还讲解了通过mysql_secure_installation进行安全性配置的过程，包括设置密码验证策略、移除匿名用户等步骤。最后，介绍了基本的数据库操作命令。

1、安装mysql

brew install mysql

2、启动或关闭mysql

brew services start mysql(启动）或 mysql.server start

brew services stop mysql（停止）

3、mysql相关权限配置

3.1、执行：/usr/local/Cellar/mysql/5.7.14/bin/mysql_secure_installation ，进行一些初始化配置。

Securing the MySQL server deployment.

Connecting to MySQL using a blank password.

VALIDATE PASSWORD PLUGIN can be used to test passwords
and improve security. It checks the strength of password
and allows the users to set only those passwords which are
secure enough. Would you like to setup VALIDATE PASSWORD plugin?

Press y|Y for Yes, any other key for No: y

There are three levels of password validation policy:

LOW    Length >= 8
MEDIUM Length >= 8, numeric, mixed case, and special characters
STRONG Length >= 8, numeric, mixed case, special characters and dictionary                  file

Please enter 0 = LOW, 1 = MEDIUM and 2 = STRONG: 0
Please set the password for root here.

New password: 

Re-enter new password: 

Estimated strength of the password: 50 
Do you wish to continue with the password provided?(Press y|Y for Yes, any other key for No) : y
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.

Remove anonymous users? (Press y|Y for Yes, any other key for No) : n

 ... skipping.


Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.

Disallow root login remotely? (Press y|Y for Yes, any other key for No) : y
Success.

By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.


Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y
 - Dropping test database...
Success.

 - Removing privileges on test database...
Success.

Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.

Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y
Success.

All done!

3.2、创建数据库

mysql -u root -p 以root权限进入
create database test; 创建数据库语句
drop database test; 删除数据库语句
show databases;显示数据库

create user 'yourusername'@'127.0.0.1/localhost' identified by 'yourpassword’; 创建用户
GRANT ALL ON test.* TO '<span style="font-family: -webkit-standard;">yourusername</span>'@‘127.0.0.1/localhost' IDENTIFIED BY 'yourpassword’; 给用户授权
select user,host from mysql.user; 查询用户及端口
select user(),current_user(); 查询用户

mysql -u youusername -p 以用户权限进入

参考： python使用mysql数据库