6
我有这样的:MySQL:错误150使用ON UPDATE SET NULL和ON DELETE SET NULL,为什么?
DROP TABLE IF EXISTS `sf_guard_user`;
CREATE TABLE `sf_guard_user`
(
`id` INTEGER(11) NOT NULL AUTO_INCREMENT,
`username` VARCHAR(128) NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `sf_guard_user_U_1` (`username`)
)Type=InnoDB;
DROP TABLE IF EXISTS `shop_orders`;
CREATE TABLE `shop_orders`
(
`orders_id` INTEGER(11) NOT NULL AUTO_INCREMENT,
`sfgu_id` INTEGER(11) NOT NULL,
PRIMARY KEY (`orders_id`),
INDEX `shop_orders_FI_1` (`sfgu_id`),
CONSTRAINT `shop_orders_FK_1`
FOREIGN KEY (`sfgu_id`)
REFERENCES `sf_guard_user` (`id`)
ON UPDATE SET NULL
ON DELETE SET NULL,
)Type=InnoDB;
,我得到这个错误:
1005 - Can't create table 'prueba1.shop_orders' (errno: 150)
如果我不删除ON UPDATE SET NULL和ON DELETE SET NULL的行。
任何想法为什么?
问候
哈维
是的,这是真的,我不能宣布`sfgu_id`为NOT NULL。 – ziiweb 2011-02-16 11:29:37