What are some best practices for setting up a MySQL database for a PHP application like a vocabulary trainer?

When setting up a MySQL database for a PHP application like a vocabulary trainer, it is important to properly structure the database tables to efficiently store and retrieve data. Best practices include creating separate tables for different entities (e.g. words, users, quizzes), using appropriate data types for columns, setting up relationships between tables using foreign keys, and optimizing queries for performance. 

CREATE TABLE words (
    id INT AUTO_INCREMENT PRIMARY KEY,
    word VARCHAR(255) NOT NULL,
    definition TEXT NOT NULL
);

CREATE TABLE users (
    id INT AUTO_INCREMENT PRIMARY KEY,
    username VARCHAR(50) NOT NULL,
    email VARCHAR(100) NOT NULL,
    password VARCHAR(255) NOT NULL
);

CREATE TABLE quizzes (
    id INT AUTO_INCREMENT PRIMARY KEY,
    user_id INT,
    FOREIGN KEY (user_id) REFERENCES users(id),
    score INT
);

Keywords

MySQL database design PHP application vocabulary trainer optimization

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