mysql for mac基础（0）

安装

在终端执行以下命令即可完成mysql的安装

brew install mysql

安装成功提示：

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

登录

mysql -uroot -p

退出

mysql> exit
mysql> quit

常用命令

1. 显示服务版本号
   select Version();
2. 显示当前日期时间
   select now();
3. 显示当前用户
   select user();

常用操作

1. 创建数据库
   指定了数据库的默认编码格式

CREATE DATABASE mydb CHARACTER SET utf8;

2. 显示数据库

mysql> SHOW DATABASES;

3. 删除数据库

DROP DATABASE mydb;

4. 修改数据

ALTER DATABASE mydb set ...