Establish a return record table for the grocery shopping system in MySQL

To establish the return record table of the grocery shopping system in MySQL, specific code examples are needed

As people pay more attention to healthy eating, more and more people are beginning to choose Buy fresh fruits and vegetables at the farmers market. In order to facilitate customers to make returns and maintain market order, we need to establish a return record table for the grocery shopping system in the MySQL database. This article will introduce in detail how to create this table and give specific code examples.

First, we need to create a database and choose to use it. You can use the following command:

CREATE DATABASE `veggie_market`;
USE `veggie_market`;

Then, we create a table named returns to record returns Information, including return number, grocery purchase date, return date, return quantity, return reason and other fields. The SQL statement to create the table is as follows:

CREATE TABLE `returns` (
  `return_id` INT(11) NOT NULL AUTO_INCREMENT,
  `purchase_date` DATE NOT NULL,
  `return_date` DATE NOT NULL,
  `quantity` INT(11) NOT NULL,
  `reason` VARCHAR(255) NOT NULL,
  PRIMARY KEY (`return_id`)
);

In the above code, the return_id field is the primary key and is used to uniquely identify each return record. The purchase_date field is used to record the date when the customer purchased vegetables and fruits, the return_date field is used to record the date of return, the quantity field indicates the quantity of the return, reason The field indicates the reason for return.

When a customer returns a product, we need to insert a record into the returns table. The following is a sample code for inserting return records:

import mysql.connector

# 获取数据库连接
connection = mysql.connector.connect(
    host="localhost",
    user="root",
    password="your_password",
    database="veggie_market"
)

# 创建游标对象
cursor = connection.cursor()

# 插入退货记录
sql = "INSERT INTO returns (purchase_date, return_date, quantity, reason) VALUES (%s, %s, %s, %s)"
values = ("2022-01-01", "2022-01-02", 5, "蔬菜发霉")
cursor.execute(sql, values)

# 提交事务
connection.commit()

# 关闭游标和连接
cursor.close()
connection.close()

In the above code, we use the mysql.connector module to connect to the MySQL database. First, we get the database connection and create the cursor object. Then, use the INSERT statement to insert a return record into the returns table, and finally commit the transaction and close the cursor and connection.

Summary: Through the above steps, we successfully created a return record table for the grocery shopping system in the MySQL database, and gave specific code examples. This table can easily record customer return information, helping to maintain market order and provide better services. Hope this article is helpful to you!

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