How to design a reliable MySQL table structure to implement message push function?

How to design a reliable MySQL table structure to implement message push function?

Overview:
With the popularity of mobile applications, the message push function has become one of the core functions of many applications. When implementing the message push function, it is very important to design a reliable MySQL table structure. This article will introduce how to design a reliable MySQL table structure and provide specific code examples.

Table structure design:
In order to realize the message push function, we can design the following table structures: user table, device table, message table. The following is the specific design of these tables:

1. User table (user):

   • id: user ID, primary key
   • name: user Name
   • email: User email address
   • password: User password
   • created_at: Creation time
   • updated_at: Update time

2. Device table (device):

   • id: device ID, primary key
   • user_id: user ID, foreign key associated with the id field of the user table
   • token: device push token
   • created_at: creation time
   • updated_at: update time
3. ##Message table (message):
   id: message ID, primary key
   • sender_id: sender ID, foreign key associated with the id field of the user table
   • receiver_id: receiver ID, foreign key associated with the user table The id field
   • content: message content
   • sent_at: sending time
   • is_read: whether it has been read

code Example:

The following is a code example using the MySQL statement to create the above table:

1. User table (user):

   CREATE TABLE user (
     id INT PRIMARY KEY AUTO_INCREMENT,
     name VARCHAR(50) NOT NULL,
     email VARCHAR(100) NOT NULL,
     password VARCHAR(50) NOT NULL,
     created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
     updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
   );

2. Device table (device):

   CREATE TABLE device (
     id INT PRIMARY KEY AUTO_INCREMENT,
     user_id INT NOT NULL,
     token VARCHAR(100) NOT NULL,
     created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
     updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
     FOREIGN KEY (user_id) REFERENCES user(id)
   );

3. Message table (message):

   CREATE TABLE message (
     id INT PRIMARY KEY AUTO_INCREMENT,
     sender_id INT NOT NULL,
     receiver_id INT NOT NULL,
     content VARCHAR(255) NOT NULL,
     sent_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
     is_read BOOLEAN DEFAULT 0,
     FOREIGN KEY (sender_id) REFERENCES user(id),
     FOREIGN KEY (receiver_id) REFERENCES user(id)
   );

Using the above table structure, we can implement the message push function. When a user logs in or registers, we can insert the device's push token into the device table. When a user sends a message, we can insert the message content into the message table and set the recipient's ID. When the user views the message, we can set the corresponding message as read.

Summary:

When designing a reliable MySQL table structure to implement the message push function, we need to consider the design of the user table, device table and message table. Through appropriate table structure design and foreign key association, we can easily implement the message push function and provide good data management and query functions.

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