Mac如何安装MySQL

1. 在终端输入brew install mysql安装MySQL，完成之后重启终端。

   We've installed your MySQL database without a root password. To secure it run:

   ​ mysql_secure_installation

   MySQL is configured to only allow connections from localhost by default

   To connect run:

   ​ mysql -uroot

   To have launchd start mysql now and restart at login:

   brew services start mysql

   Or, if you don't want/need a background service you can just run:

   mysql.server start

   ==> Summary

   /usr/local/Cellar/mysql/5.7.19: 322 files, 233MB

   上面说已经安装了MySQL但是没有密码。

2. 输入mysql再按tab会提示一些和mysql相关的命令，证明安装成功

   mysql mysqlbinlog

   mysql.server mysqlcheck

   mysql_client_test mysqld

   mysql_client_test_embedded mysqld_multi

   mysql_config mysqld_safe

   mysql_config_editor mysqldump

   mysql_embedded mysqldumpslow

   mysql_install_db mysqlimport

   mysql_plugin mysqlpump

   mysql_secure_installation mysqlshow

   mysql_ssl_rsa_setup mysqlslap

   mysql_tzinfo_to_sql mysqltest

   mysql_upgrade mysqltest_embedded

   mysqladmin mysqlxtest

至此，mysql就安装完了。

MySQL简单上手

3. MySQL和直接使用sqlite不同，需要有一个MySQL server在，之后通过socket去链接上MySQL，然后才可以对数据库进行相关操作。

   1. 启动和关闭服务

      mysql.server start
      Starting MySQL
      . SUCCESS! 
      
      mysql.server stop
      Shutting down MySQL
      . SUCCESS! 
      

      之后重新开启，来进行后面的操作

      2. 配置root用户

         MySQL有自己的用户体系，默认用户是 root账户，没有密码。可以通过下列命令来设置密码

         mysqladmin -u root password
         New password: 
         Confirm new password: 
         Warning: Since password will be sent to server in plain text, use ssl connection to ensure password safety.
         

         包括mysqladmin在内，其他的mysql需要指明用户的时候加 -u username,如果用户添加过密码，需要使用-p指令，所以如果已经设置过root用户的密码之后再修改密码，后面就需要加-p，否则按照前面的就会报错

         mysqladmin -u root password
         mysqladmin: connect to server at 'localhost' failed
         error: 'Access denied for user 'root'@'localhost' (using password: NO)'
         
         mysqladmin -u root password -p
         Enter password: 
         New password: 
         Confirm new password: 
         Warning: Since password will be sent to server in plain text, use ssl connection to ensure password safety.
         

         ​

      3. 使用root用户连接数据库

         mysql -u root -p
         Enter password: 
         Welcome to the MySQL monitor.  Commands end with ; or \g.
         Your MySQL connection id is 6
         Server version: 5.7.19 Homebrew
         
         Copyright (c) 2000, 2017, 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.
         

      4. 一些基本操作

         • 查看数据库

           SHOW DATABASES;
           +--------------------+
           | Database           |
           +--------------------+
           | information_schema |
           | mysql              |
           | performance_schema |
           | sys                |
           +--------------------+
           4 rows in set (0.01 sec)
           

         • 创建数据库 使用数据库 查看表

           CREATE DATABASE mydb;
           Query OK, 1 row affected (0.00 sec)
           SHOW DATABASES;
           +--------------------+
           | Database           |
           +--------------------+
           | information_schema |
           | mydb               |
           | mysql              |
           | performance_schema |
           | sys                |
           +--------------------+
           5 rows in set (0.00 sec)
           USE mydb
           Database changed
           SHOW TABLES;
           Empty set (0.00 sec)
           

           ​

创建一个新用户

​ root用户的权限一般不会随便拿去使用，所以创建一些用户，并分配对应的权限。下面的命令创建的是一个名字是user12 密码是123456 的本地用户

CREATE USER user12@localhost IDENTIFIED BY '123456';
Query OK, 0 rows affected (0.00 sec)
之后分配mydb数据库的权限
GRANT ALL ON mydb.* to user12@localhost;
Query OK, 0 rows affected (0.00 sec)

GUI 工具

Mac 有一个好用且免费的GUI工具 Sequel Pro

用socket链接数据库之后，可以进行很多操作。

以上大部分内容来源自binderclip 在此表示感谢