晚霞再美不及你
Web Technology网络技术LAB-4 CSS
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网络技术lab6css
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网络技术css6
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网络技术css6 Task-8最后一题答案
justify-content: center; align-items: stretch; flex-direction: column-reverse; align-self: stretch; flex-wrap: wrap-reverse; align-content: space-between;
数据库MySQL代码
-- 创建车辆表 CREATE TABLE vehicles ( veh_reg_no VARCHAR(8) NOT NULL, -- 车辆登记号码 category ENUM('car', 'truck') NOT NULL DEFAULT 'car', -- 车辆类别 brand VARCHAR(30) NOT NULL D...
网络技术lab8
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mysqlcode!!!
-- 1. 创建表 (初始时不添加外键约束) CREATE TABLE regions ( REGION_ID INT PRIMARY KEY, REGION_NAME VARCHAR(50) ); CREATE TABLE countries ( COUNTRY_ID CHAR(2) PRIMARY KEY, COUNTRY_NA...
MySQL数据库第二张纸的代码
-- 统计查询 -- 12. 获取部门 ID 为 90 的员工的总薪水、最大薪水、最小薪水和平均薪水（按工作 ID 分） SELECT job_id, SUM(salary) AS total_salary, MAX(salary) AS max_salary, MIN(salary)...
