MySQL是一种开源的关系型数据库管理系统，它被广泛应用于各种应用程序的数据存储和管理。当我们打开MySQL时，我们将看到以下内容：
Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 3Server version: 5.7.22 MySQL Community Server (GPL)Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql>
这是MySQL监视器的欢迎界面，我们可以在MySQL监视器中执行各种SQL命令。下面是一些基本命令，您可以在MySQL监视器中尝试：
mysql> SHOW DATABASES;+--------------------+| Database |+--------------------+| information_schema || mysql || performance_schema || test |+--------------------+4 rows in set (0.00 sec)mysql> CREATE DATABASE mydatabase;Query OK, 1 row affected (0.00 sec)mysql> USE mydatabase;Database changedmysql> CREATE TABLE mytable (-> id INT,-> name VARCHAR(255),-> age INT-> );Query OK, 0 rows affected (0.00 sec)mysql> INSERT INTO mytable (id, name, age) VALUES (1, 'Alice', 18);Query OK, 1 row affected (0.00 sec)mysql> SELECT * FROM mytable;+------+------+-----+| id | name | age |+------+------+-----+| 1 | Alice| 18 |+------+------+-----+1 row in set (0.00 sec)
这些基本命令可以帮助您开始使用MySQL，尝试在您的本地计算机上安装MySQL，并使用这些命令创建您自己的数据库和表。祝你好运！
