CREATE TABLE IF NOT EXISTS users ( id INT AUTO_INCREMENT PRIMARY KEY, username VARCHAR(255) NOT NULL UNIQUE, password VARCHAR(255) NOT NULL ); CREATE TABLE IF NOT EXISTS danger_zones ( id INT AUTO_INCREMENT PRIMARY KEY, type VARCHAR(50) NOT NULL, coordinates JSON NOT NULL, color VARCHAR(20) NOT NULL ); CREATE TABLE IF NOT EXISTS paths ( id INT AUTO_INCREMENT PRIMARY KEY, drone_id VARCHAR(50) NOT NULL, path JSON NOT NULL );