Establish an order delivery table for the grocery shopping system in MySQL

To establish the order distribution table of the grocery shopping system in MySQL, specific code examples are required

[Introduction]
As a ubiquitous service, the grocery shopping system Provide customers with a more convenient way to buy vegetables. In order to ensure accurate orders and efficient distribution, establishing an order distribution table has become one of the necessary database operations. In this article, I will show you how to use MySQL to build an order delivery table for a grocery shopping system, and provide specific code examples.

[Requirement Analysis]
Before establishing the order distribution table, we need to clarify our needs first. The order distribution table of the grocery shopping system should include the following important information:

1. Order number: a number that uniquely identifies an order and is used to uniquely identify the order.
2. Dish name: The name of the dish included in the order, so that subsequent delivery personnel can understand the type of dish to be delivered.
3. Purchase quantity: The quantity of each dish purchased in the order is used to calculate the total delivery quantity.
4. Customer Name: The name of the customer who placed the order to facilitate order delivery and contact.
5. Customer address: The customer's detailed address, used for accurate delivery of goods.
6. Delivery Personnel: ID of the delivery person responsible for delivering the order, used for subsequent management of delivery personnel.

[Table Building Process]
Next, we will use the MySQL language to build the order distribution table of the grocery shopping system. First, we need to set up a database and choose to use it.

CREATE DATABASE buy_vegetable_system;
USE buy_vegetable_system;

Then, we create a table named order_delivery, which contains the fields we listed in the requirements analysis.

CREATE TABLE order_delivery (
  order_id INT PRIMARY KEY AUTO_INCREMENT,
  vegetable_name VARCHAR(50) NOT NULL,
  quantity INT NOT NULL,
  customer_name VARCHAR(50) NOT NULL,
  customer_address VARCHAR(100) NOT NULL,
  delivery_person_id INT NOT NULL
);

Next, we add some sample data to the table to facilitate subsequent demonstrations.

INSERT INTO order_delivery (vegetable_name, quantity, customer_name, customer_address, delivery_person_id)
VALUES
  ('土豆', 2, '张三', '北京市朝阳区', 1),
  ('西红柿', 3, '李四', '北京市海淀区', 2),
  ('黄瓜', 4, '王五', '北京市丰台区', 3),
  ('茄子', 2, '赵六', '北京市通州区', 4);

So far, we have successfully created the order delivery table for the grocery shopping system and added sample data.

[Query operation]
In practical applications, we often need to query the data in the order distribution table. Here are some examples of commonly used query operations.

1. Query all orders

   SELECT * FROM order_delivery;

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2. Query the delivery information of a specific order

   SELECT * FROM order_delivery WHERE order_id = 2;

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3. Query a certain All orders of delivery personnel

   SELECT * FROM order_delivery WHERE delivery_person_id = 3;

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4. Query all orders of a customer

   SELECT * FROM order_delivery WHERE customer_name = '赵六';

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   [Summary]
   In this article, we use MySQL language established the order distribution table of the grocery shopping system. By clarifying the requirements and combining it with specific code examples, we successfully created the table and performed some common query operations. In actual applications, you can modify and expand it according to business needs to meet the needs of the system.

   I hope this article will help you understand the establishment of the order distribution table of the grocery shopping system in MySQL. If you have any questions, please feel free to ask and I will do my best to answer them.

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