SELECT userID, username, phoneNumber, passwordHash, joinDate, userType, birthday, signature FROM users INSERT INTO users (userID, username, phoneNumber, passwordHash, joinDate, userType, birthday, signature) VALUES (#{userID}, #{username}, #{phoneNumber}, #{passwordHash}, #{joinDate}, #{userType}, #{birthday}, #{signature}) UPDATE users SET username = #{username}, phoneNumber = #{phoneNumber}, passwordHash = #{passwordHash}, joinDate = #{joinDate}, userType = #{userType}, birthday = #{birthday}, signature = #{signature} WHERE userID = #{userID} DELETE FROM users WHERE userID = #{userID} SELECT userID, username, phoneNumber, passwordHash, joinDate, userType, birthday, signature FROM users WHERE userID = #{userID}