SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO"; INSERT INTO `category` (`id`, `name`) VALUES (1, 'Phones'), (2, 'Computers'); INSERT INTO `category_product` (`category_id`, `product_id`) VALUES (1, 1), (2, 2); INSERT INTO `product` (`id`, `sku`) VALUES (1, 'iPhone'), (2, 'iPad'), (3, 'iMac');