网上购物数据库系统 提供数据库查询 购物记录查询购物时间,购物清单 查看商品列表 结算功能进行支付 查看商品发货物流信息 使用sql创建库和表
时间: 2024-11-14 17:22:56 浏览: 26
网上购物数据库系统是一个专门设计用于支持在线购物平台的数据存储和管理系统的组成部分。它通常包含以下几个关键元素:
1. 数据库设计: SQL(Structured Query Language)可以用来创建库(Database),如 `eCommerceDB`,以及相关的表格,比如:
- `Customers` (顾客信息): 包含字段如 `customer_id`, `username`, `email`, 和 `password`.
- `Products` (商品信息): `product_id`, `name`, `description`, `price`, `stock`.
- `Orders` (订单表): `order_id`, `customer_id`, `purchase_date`, `status`.
- `OrderItems` (订单明细): `item_id`, `order_id`, `product_id`, `quantity`.
2. 查询功能: 可以通过SQL编写查询来获取特定信息,例如:
- 查询某次购买的时间 (`SELECT * FROM Orders WHERE order_id = ? AND purchase_date BETWEEN ? AND ?`)。
- 检索购物清单 (`SELECT p.name, oi.quantity FROM Products p JOIN OrderItems oi ON p.product_id = oi.product_id WHERE oi.order_id = ?`)。
- 获取某个时间段内的购物记录 (`SELECT * FROM Orders WHERE customer_id = ? AND purchase_date BETWEEN ? AND ?`).
3. 结算与支付: 记录用户的支付信息 (`payment_id`, `order_id`, `amount`, `transaction_time`),并可能需要与第三方支付API集成。
4. 物流跟踪: 创建一个`ShippingDetails`表来存储 `shipment_id`, `order_id`, `carrier`, ` tracking_number`等信息,以便用户查询货物状态。
创建这些数据库结构的SQL示例:
```sql
CREATE DATABASE eCommerceDB;
USE eCommerceDB;
CREATE TABLE Customers (
customer_id INT PRIMARY KEY,
username VARCHAR(50) NOT NULL,
email VARCHAR(100) UNIQUE,
password VARCHAR(64)
);
CREATE TABLE Products (
product_id INT PRIMARY KEY,
name VARCHAR(100),
description TEXT,
price DECIMAL(10, 2),
stock INT
);
CREATE TABLE Orders (
order_id INT PRIMARY KEY,
customer_id INT,
purchase_date DATE,
status ENUM('pending', 'processing', 'shipped', 'completed'),
FOREIGN KEY (customer_id) REFERENCES Customers(customer_id)
);
CREATE TABLE OrderItems (
item_id INT PRIMARY KEY,
order_id INT,
product_id INT,
quantity INT,
FOREIGN KEY (order_id) REFERENCES Orders(order_id),
FOREIGN KEY (product_id) REFERENCES Products(product_id)
);
CREATE TABLE Payments (
payment_id INT PRIMARY KEY,
order_id INT,
amount DECIMAL(10, 2),
transaction_time TIMESTAMP,
FOREIGN KEY (order_id) REFERENCES Orders(order_id)
);
CREATE TABLE ShippingDetails (
shipment_id INT PRIMARY KEY,
order_id INT,
carrier VARCHAR(50),
tracking_number VARCHAR(20),
FOREIGN KEY (order_id) REFERENCES Orders(order_id)
);
```
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