How to design an efficient MySQL table structure to implement the video live broadcast function?

How to design an efficient MySQL table structure to implement the live video function?

In today's Internet era, live video has become a very popular and practical way, allowing users to watch events or content they are interested in anytime and anywhere. To realize the live video function, database design is a very important part. This article will introduce how to design an efficient MySQL table structure to implement the video live broadcast function, and provide some specific code examples.

1. User table design

The user table is the basis of the live video function. It records the information of all users who use the system. The table structure is as follows:

CREATE TABLE user (
id INT(11) NOT NULL AUTO_INCREMENT,
username VARCHAR(50) NOT NULL,
password VARCHAR(50) NOT NULL,
email VARCHAR(100) NOT NULL,
created_at DATETIME NOT NULL,
PRIMARY KEY (id),
UNIQUE KEY username (username),
UNIQUE KEY email (email)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

2. Live broadcast room table design

Live broadcast room table All live broadcast room information is recorded, including the name of the live broadcast room, anchor, number of viewers, etc. The table structure is as follows:

CREATE TABLE live_room (
id INT(11) NOT NULL AUTO_INCREMENT,
room_name VARCHAR(100) NOT NULL,
host_id INT(11) NOT NULL,
watch_count INT(11) NOT NULL DEFAULT '0',
created_at DATETIME NOT NULL,
PRIMARY KEY (id),
UNIQUE KEY room_name (room_name),
KEY host_id (host_id),
KEY watch_count (watch_count)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

3. Video flow table design

The video flow table records all video flow information, including live broadcast room, timestamp, playback address, etc. The table structure is as follows:

CREATE TABLE video_stream (
id INT(11) NOT NULL AUTO_INCREMENT,
room_id INT(11) NOT NULL,
timestamp INT(11) NOT NULL,
video_url VARCHAR(255) NOT NULL,
created_at DATETIME NOT NULL,
PRIMARY KEY (id),
KEY room_id (room_id),
KEY timestamp (timestamp)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

4. View history table design

View history table record The history of videos watched by users, including users, video streams, viewing duration, etc. The table structure is as follows:

CREATE TABLE watch_history (
id INT(11) NOT NULL AUTO_INCREMENT,
user_id INT(11) NOT NULL,
stream_id INT(11) NOT NULL,
watch_time INT(11) NOT NULL,
created_at DATETIME NOT NULL,
PRIMARY KEY (id),
KEY user_id (user_id),
KEY stream_id (stream_id),
KEY created_at (created_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

The purpose of designing these four tables is to implement a basic video live broadcast function. The user table is used to store user information; the live broadcast room table is used to record live broadcast room information; the video stream table is used to store video stream information; watch The history table is used to record the history of videos watched by users.

Here is some sample code showing how to add data to these tables:

// Add user
INSERT INTO user (username, password, email, created_at) VALUES ('testuser', 'password123', 'testuser@example.com', NOW());

// Create live room
INSERT INTO live_room (room_name, host_id, created_at) VALUES (' Live broadcast room 1', 1, NOW());

//Add video stream
INSERT INTO video_stream (room_id, timestamp, video_url, created_at) VALUES (1, TIME_TO_SEC(NOW()), 'http://example.com/video1.mp4', NOW());

// Record watch history
INSERT INTO watch_history (user_id, stream_id, watch_time, created_at ) VALUES (1, 1, 3600, NOW());

Through these sample codes, you can see how to add data to various tables in the database, and you can do it according to your own needs Make corresponding adjustments.

When implementing the live video function, in addition to the design of the database table structure, reasonable index design, cache settings, reasonable query and update strategies, etc. are also required. Optimizing database performance is a very complex process and needs to be tuned according to specific scenarios.

In short, designing an efficient MySQL table structure to implement the video live broadcast function is a very important step, which can improve the performance and stability of the system. Through the introduction of this article, I believe you will have a deeper understanding of how to design such a table structure, and I hope it will be helpful to your project.

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