SET NAMES utf8; SET time_zone = '+00:00'; SET foreign_key_checks = 0; SET sql_mode = 'NO_AUTO_VALUE_ON_ZERO'; SET NAMES utf8mb4; DROP TABLE IF EXISTS `table_truncate1`; CREATE TABLE `table_truncate1` ( `id` int(11) NOT NULL AUTO_INCREMENT, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci; INSERT INTO `table_truncate1` (`id`) VALUES (1), (2), (3); DROP TABLE IF EXISTS `table_truncate2`; CREATE TABLE `table_truncate2` ( `id` int(11) NOT NULL AUTO_INCREMENT, `delete_me` tinyint(4) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci; INSERT INTO `table_truncate2` (`id`, `delete_me`) VALUES (1, 1), (2, 1), (3, 0); DROP TABLE IF EXISTS `table_update`; CREATE TABLE `table_update` ( `id` int NOT NULL AUTO_INCREMENT PRIMARY KEY, `col_string` varchar(255) NULL, `col_bool` int NULL, `col_int` int NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci; INSERT INTO `table_update` (`id`, `col_string`, `col_bool`, `col_int`) VALUES (1, 'foo', 1, 1), (2, 'bar', 0, 2), (3, NULL, NULL, NULL);