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我想删除使用FOREIGN KEY引用数据。无法设置外键在DELETE ON CASCADE上
这里是我的两个数据表的:
CREATE TABLE `specification_variant_parent` (
`specification_variant_parent_id` int(11) unsigned NOT NULL AUTO_INCREMENT,
`sort_order` tinyint(3) unsigned NOT NULL,
PRIMARY KEY (`specification_variant_parent_id`)
) ENGINE=InnoDB;
CREATE TABLE `specification_variant_parent_description` (
`specification_variant_parent_id` smallint(5) unsigned NOT NULL,
`language_id` tinyint(3) unsigned NOT NULL,
`name` varchar(64) COLLATE utf8mb4_unicode_ci NOT NULL,
PRIMARY KEY (`specification_variant_parent_id`,`language_id`),
KEY (`specification_variant_parent_id`)
REFERENCES specification_variant_parent (specification_variant_parent_id) ON DELETE CASCADE
) ENGINE=InnoDB;
当我火了在phpMyAdmin它说:
错误表 数据库/ specification_variant_parent_description的外键约束:FOREIGN KEY (
specification_variant_parent_id
)参考 specification_variant_parent(specification_variant_parent_id)ON DELETE CASCADE)ENGINE = InnoDB:在引用的012中找不到索引表中引用的列显示为第一列,或 表中的列类型和引用的表不匹配 约束。
我的数据库方案有什么问题?
有时候,小事情会产生变化。非常感谢您的帮助。下次我会更好地检查它。 –