用sql写一个网上书店管理系统完整的包括(视图和表)
时间: 2023-07-16 17:11:35 浏览: 58
好的,下面是一个简单的网上书店管理系统的SQL代码,包括视图和表:
首先,创建一个书籍表(books)和一个订单表(orders):
```sql
CREATE TABLE books (
book_id INT PRIMARY KEY,
title VARCHAR(255),
author VARCHAR(255),
price DECIMAL(10, 2),
stock INT
);
CREATE TABLE orders (
order_id INT PRIMARY KEY,
customer_name VARCHAR(255),
order_date DATE,
shipped_date DATE,
total_price DECIMAL(10, 2)
);
```
接下来,我们创建一个视图(book_orders),以显示所有订单中的书籍信息:
```sql
CREATE VIEW book_orders AS
SELECT o.order_id, b.title, b.author, b.price, o.customer_name, o.order_date, o.shipped_date, o.total_price
FROM orders o
JOIN order_details od ON o.order_id = od.order_id
JOIN books b ON od.book_id = b.book_id;
```
最后,创建一个订单明细表(order_details),以跟踪每个订单中的书籍数量:
```sql
CREATE TABLE order_details (
order_id INT,
book_id INT,
quantity INT,
PRIMARY KEY (order_id, book_id),
FOREIGN KEY (order_id) REFERENCES orders(order_id),
FOREIGN KEY (book_id) REFERENCES books(book_id)
);
```
这些SQL代码是一个简单的网上书店管理系统的基础,可以根据需要进行扩展和修改。