MySQL添加外键失败ERROR 1452的解决 出现: ERROR 1452 : Cannot add or update a child row: a foreign key constraint fails 最后才发现,原来是我的order_items表中已经存在了数据(这才是重点),且orderid这个属性和orders中的不对应,因此如果添加外键,就会导致错误 此时解决的办法不外乎两个: 1.删除数据,再添...
这是因为表设置了外键约束,而你试图插入一条外键字段所在表纪录不存在的一个值.就会报1452错.比如a,b两表,a表外键id值来自b表的ID,当你在a表中插入一条纪录时,id字段用了不在b表id值范围内的值,就会报此错.
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Error Code: 1452. Cannot add or update a child row: a foreign key constraint fails (`SoLMySqlDB`.`orders`, CONSTRAINT `fk_orders_users1` FOREIGN KEY (`users_user_id`) REFERENCES `users` (`user_id`) ON DELETE CASCADE ON UPDATE CASCADE) ...
在创建t_money加外键staffId,关联t_staff的id时出现:最后才发现,原来是我的t_money和t_staff表中已经存在了数据。删除数据后关联成功。
mysql> insert into pc values('1'); Query OK,1row affected (0.01sec) mysql> insert into pc values('5'); ERROR1452(23000): Cannot add or update a child row: a foreign key constraint fails (`Orange/pc`, CONSTRAINT `pc_ibfk_1` FOREIGN KEY ...
ERROR 1452 (23000): 问题: mysql> insert into teacher(name,dept_id) values('bb',1); ERROR1452(23000): Cannot add or update a child row: a foreign key constraint fails (`course`.`teacher`, CONSTRAINT `for_teacher_1` FOREIGN KEY (`dept_id`) REFERENCES `dept` (`id`) ON DELETE SET...
错误:1289 SQLSTATE: HY000 (ER_FEATURE_DISABLED) 消息:’%s’特性已被禁止,要想使其工作,需要用’%s’创建MySQL。 [Page] 错误:1290 SQLSTATE: HY000 (ER_OPTION_PREVENTS_STATEMENT消息:MySQL正使用%s选项运行,因此不能执行该语句。 错误:1291 SQLS...
Please note that adding row to order used to work for more than half a year and for some reason it stopped working. The problem is that it happens in production db while in debug db it works great. I compared the two db schemes and they seems to be exactly the same. ...
Re: Error Code: 1452. Cannot add or update a child row K Sqlnicus January 03, 2015 11:54AM Sorry, you can't reply to this topic. It has been closed. Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and doe...