一、错误日志解析:(1) 【ERROR】1452:无法在外键的表插入参考主键没有的数据 1452:无法在外键的表插入或更新参考主键没有的数据。由于item_discovery.itemid字段(外键)参考了items.itemid字段(主键),当要在item_discovery表插数据时,如果items表的主键没有对应的数据,则无法插入,报1452错误。此时可以检查参考的表...
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,再添加外键 2.在orders中添加对应的项,再添加...
altertablestudentdefaultcharactersetutf8;altertablescdefaultcharactersetutf8;altertablecoursedefaultcharactersetutf8;/*修改字段*/altertablestudent change Sname Snamechar(20)charactersetutf8;altertablestudent change Ssex Ssexchar(1)charactersetutf8; 3. Error Code: 1175. You are using safe update mode and...
Error Code: 1452. Cannot add or update a child row: a foreign key constraint fails (`test`.`line_order`, CONSTRAINT `line_order_ibfk_1` FOREIGN KEY (`ORDER_ID`) REFERENCES `donut_order` (`ORDER_ID`)) My assumption is that this is due to my FK inheriting the UNIQUE constraint from...
MySQL添加外键失败ERROR 1452 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。
Replicate_Wild_Ignore_Table: Last_Errno: 1032 Last_Error: Could not execute Update_rows event on table xuanzhi.test; Can't find record in 'test', Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event's master log mysql-bin.000004, end_log_pos 3704 但是，如果不深究或...
问Mysql错误1452 -无法添加或更新子行:外键约束失败EN外键其实很好理解，简单的说就是两张表建立一个...
Replicate_Wild_Ignore_Table: Last_Errno: 1032 Last_Error: Could not execute Update_rows event on table xuanzhi.test; Can't find record in 'test', Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event's master log mysql-bin.000004, end_log_pos 3704 ...
• Error number: 1003; Symbol: ER_YES; SQLSTATE: HY000 Message: YES Used in the construction of other messages. Extended EXPLAIN format generates Note messages. ER_YES is used in the Code column for these messages in subsequent SHOW WARNINGS output. • Error number: 1004; Symbol: ER_...
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) ...