mysql数据库操作：连接、

使用命令连接

打开终端，运行命令

mysql -uroot -p

回车后输入密码
连接成功后如下

(h2) dy@ding:~$ mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 5.7.30-0ubuntu0.16.04.1 (Ubuntu)

Copyright (c) 2000, 2020, 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> 

• 登录成功后，输入如下命令查看版本号

select version();

• 显示当前时间

select now();

• quit或exit退出

远程连接

mysql -hip地址 -uroot -p