MySQL implements the order status management function of the ordering system

MySQL implements the order status management function of the ordering system, which requires specific code examples

With the rise of the takeout business, the ordering system has become a must-have for many restaurants Tool of. The order status management function is an important part of the ordering system. It can help restaurants accurately grasp the progress of order processing, improve order processing efficiency, and enhance user experience. This article will introduce the use of MySQL to implement the order status management function of the ordering system and provide specific code examples.

The order status management function needs to maintain the various statuses of the order, such as order placed, order received, delivery in progress, completed, etc. The following is a simple order table example:

CREATE TABLE `order_info` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `order_number` varchar(20) NOT NULL,
  `status` int(11) NOT NULL DEFAULT '0' COMMENT '订单状态：0-已下单，1-已接单，2-配送中，3-已完成',
  `create_time` datetime DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

In the above example, the fields in the order_info table include id (order ID), order_number (order number), status (order status) and create_time (order creation time). Among them, the status field is used to represent the status of the order, using integer data to correspond to different status values.

Next, we need to add an enumeration type for the order status. First, we need to create an enumeration type to represent the different statuses of the order.

CREATE TYPE order_status_enum AS ENUM ('已下单', '已接单', '配送中', '已完成');

Then, we will modify the type of the status field of the order_info table to order_status_enum.

ALTER TABLE `order_info` MODIFY `status` order_status_enum NOT NULL DEFAULT '已下单';

Now, we have added an enumeration type for order status. Next, we need to insert some test data.

INSERT INTO `order_info` (`order_number`, `status`, `create_time`) VALUES
('123456789', '已下单', '2022-01-01 10:00:00'),
('987654321', '已接单', '2022-01-02 10:00:00'),
('567891234', '配送中', '2022-01-03 10:00:00'),
('432198765', '已完成', '2022-01-04 10:00:00');

Now, we can check the order status. The following are some sample query statements:

1. Query all orders and their status:

SELECT * FROM `order_info`;

2. Query the orders that have been received:

SELECT * FROM `order_info` WHERE `status` = '已接单';

3. Query the total number of orders and the number of orders in each status:

SELECT COUNT(*) AS `total_orders`, `status`, COUNT(*) AS `order_count`
FROM `order_info` GROUP BY `status`;

The above code example shows how to use MySQL to implement the order status management function of the ordering system. By maintaining the status of orders, restaurants can better understand the progress of order processing, improve order processing efficiency, and enhance user experience. Of course, according to actual needs, you can split and manage order status in more detail according to your own business scenarios.

It should be noted that the code examples provided in this article are for reference only, and may need to be adjusted and expanded according to specific business needs in actual applications. At the same time, in order to ensure the integrity and accuracy of the data, you may also need to add indexes, triggers, constraints and other database technology means.

Implementing the order status management function of the ordering system through MySQL can not only improve order processing efficiency, but also help improve user experience. I hope the code examples in this article can be helpful to your actual development work.

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