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如下是MySQL实训环境,使用chrome浏览器一键连接到底层操作系统命令行终端,可以进行操作系统命令学习,可以连接到数据库做任何操作、测试、实验。
同时将Oracle经典的HR学习示例Schema对所有数据库做了适配,快速初始化后可供大家学习相关对象设计和SQL。 详细初始化脚本参考:《HR Schema for MySQL 》https://www.modb.pro/db/100651
root@modb:~# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 8.0.26-0ubuntu0.21.04.3 (Ubuntu)
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
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> DROP SCHEMA IF EXISTS hr;
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> CREATE SCHEMA hr COLLATE = utf8_ge;
neral_ciQuery OK, 1 row affected, 1 warning (0.01 sec)
mysql> USE hr;
Database changed
mysql> select count(*) from employees;
count
-------
107
(1 row)