INSERT INTO `ukrstal_db`.`category` (
`id` ,
`parent_id` ,
`rewrite` ,
`top` ,
`image` ,
`sort_order`
)
VALUES (
NULL , '0', 'category-1', '1', 'sadasd', '0'
)
Ответ MySQL: Документация
#1452 - Cannot add or update a child row: a foreign key constraint fails (`ukrstal_db`.`category`, CONSTRAINT `fk-category-parent_id-category-id` FOREIGN KEY (`parent_id`) REFERENCES `category` (`id`) ON DELETE CASCADE)