minesweeper_db.sql

CREATE TABLE `settings` (
  `user_id` int(11) NOT NULL,
  `setting_name` varchar(255) NOT NULL,
  `setting_value` varchar(255) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;

CREATE TABLE `users` (
  `user_id` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(255) NOT NULL,
  `password` varchar(255) NOT NULL,
  `email` varchar(255) NOT NULL UNIQUE,
  `registration_date` timestamp NOT NULL DEFAULT current_timestamp(),
  PRIMARY KEY (`user_id`),
  UNIQUE KEY `email` (`email`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;

CREATE TABLE `games` (
  `game_id` int(11) NOT NULL AUTO_INCREMENT,
  `user_id` int(11) DEFAULT NULL,
  `game_state` enum('won','lost','in_progress') NOT NULL,
  `start_time` timestamp NOT NULL DEFAULT current_timestamp(),
  `end_time` timestamp NULL DEFAULT NULL,
  `difficulty_level` enum('easy','medium','hard') NOT NULL,
  PRIMARY KEY (`game_id`),
  KEY `user_id` (`user_id`),
  CONSTRAINT `games_ibfk_1` FOREIGN KEY (`user_id`) REFERENCES `users` (`user_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;