ALTER TABLE `tonlinelecturemeetingaccount` CHANGE `APIKey` `APIKey` LONGTEXT CHARACTER SET `utf8` COLLATE `utf8_general_ci` NULL DEFAULT ? , CHANGE `APISecret` `APISecret` LONGTEXT CHARACTER SET `utf8` COLLATE `utf8_general_ci` NULL DEFAULT ? , CHANGE `WebApiKey` `WebApiKey` LONGTEXT CHARACTER SET `utf8` COLLATE `utf8_general_ci` NULL DEFAULT ? , CHANGE `WebApiSecret` `WebApiSecret` LONGTEXT CHARACTER SET `utf8` COLLATE `utf8_general_ci` NULL DEFAULT ? 