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.
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...
Mysql error 1452 - Cannot add or update a child row: a foreign key constraint fails 今天在使用load data 将txt文件中的数据导入mysql中的时候,发现了这个错误,产生的原因是外键中的值,在关联的表中并不存在。 load data local infile "E:/javaTest/sql.txt" into table question FIELDS TERMINATED by '...
Im trying to insert values on this table using "insert into", but there is this error: "Error Code: 1452. Cannot add or update a child row: a foreign key constraint fails (TESTE.FUNCIONARIO, CONSTRAINT FUNCIONARIO_ibfk_1 FOREIGN KEY (CPF_SUPERVISOR) REFERENCES FUNCIONARIO (CPF...
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。
Error 1452 Posted by:Ali Fatolahi Date: August 14, 2008 07:27AM Hi, I'm using MySQL Query Browser and I have two tables: Candidate and Poll CREATE TABLE `elections`.`poll` ( `id` int(10) unsigned NOT NULL auto_increment, `pollname` varchar(45) NOT NULL,...
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...
vi Chapter 1 MySQL Error Reference This document provides a reference for the various types of error messages in MySQL: • Error messages produced only by the server: Chapter 2, Server Error Message Reference On the server side, error messages may occur during the startup and shutdown ...
Error Code: 1452 Cannot add or update a child row: a foreign key constraint fails (`liveartsdev`.`KeywordToText`, CONSTRAINT `fk_KeywordToText_Text1` FOREIGN KEY (`textUUID`) REFERENCES `Text` (`uuid`) ON DELETE NO ACTION ON UPDATE NO ACTION) ...