ALTER TABLE `polls` CHANGE `topic` `topic` VARCHAR(255) NULL DEFAULT '', CHANGE `option1` `option1` VARCHAR(255) NULL DEFAULT '', CHANGE `option2` `option2` VARCHAR(255) NULL DEFAULT '', CHANGE `option3` `option3` VARCHAR(255) NULL DEFAULT '', CHANGE `option4` `option4` VARCHAR(255) NULL DEFAULT '', CHANGE `option5` `option5` VARCHAR(255) NULL DEFAULT '', CHANGE `option6` `option6` VARCHAR(255) NULL DEFAULT '', CHANGE `author` `author` BIGINT(17) NULL DEFAULT '0', CHANGE `created` `created` TIMESTAMP NULL DEFAULT CURRENT_TIMESTAMP, CHANGE `expires` `expires` TIMESTAMP NULL DEFAULT '0000-00-00 00:00:00', CHANGE `responseYN` `responseYN` TINYINT(1) NULL DEFAULT '1', CHANGE `accessLevel` `accessLevel` INT(11) NULL DEFAULT '90'