9 lines
385 B
SQL
9 lines
385 B
SQL
CREATE TABLE IF NOT EXISTS lesson_completion (
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id INT AUTO_INCREMENT PRIMARY KEY,
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user_id INT(11) UNSIGNED NOT NULL,
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lesson_id INT(11) NOT NULL,
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completed_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
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FOREIGN KEY (lesson_id) REFERENCES lessons(id) ON DELETE CASCADE,
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UNIQUE KEY (user_id, lesson_id)
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); |