Error Number 1452

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of error 1452 mysql foreign key this site About Us Learn more about Stack Overflow the company Business Learn error 1452 sqlstate 23000 more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question error 1452 cannot add or update a child row x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up error 1452 mysql workbench Mysql error 1452 - Cannot add or update a child row: a foreign key constraint fails up vote 179 down vote favorite 53 I'm having a bit of a strange problem, I'm trying to add a foreign key to one table that references another, but it is failing for some reason. With my limited knowledge of MySQL, the only thing that could possibly

Error Code 1452 Mysql Workbench

be suspect is that there is a foreign key on a different table referencing the one I am trying to reference. Here is a picture of my table relationships, generated via phpMyAdmin: Relationships I've done a SHOW CREATE TABLE query on both tables, sourcecodes_tags is the table with the foreign key, sourcecodes is the referenced table. CREATE TABLE `sourcecodes` ( `id` int(11) unsigned NOT NULL AUTO_INCREMENT, `user_id` int(11) unsigned NOT NULL, `language_id` int(11) unsigned NOT NULL, `category_id` int(11) unsigned NOT NULL, `title` varchar(40) CHARACTER SET utf8 NOT NULL, `description` text CHARACTER SET utf8 NOT NULL, `views` int(11) unsigned NOT NULL, `downloads` int(11) unsigned NOT NULL, `time_posted` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, PRIMARY KEY (`id`), KEY `user_id` (`user_id`), KEY `language_id` (`language_id`), KEY `category_id` (`category_id`), CONSTRAINT `sourcecodes_ibfk_3` FOREIGN KEY (`language_id`) REFERENCES `languages` (`id`) ON DELETE CASCADE ON UPDATE CASCADE, CONSTRAINT `sourcecodes_ibfk_1` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`) ON DELETE CASCADE ON UPDATE CASCADE, CONSTRAINT `sourcecodes_ibfk_2` FOREIGN KEY (`category_id`) REFERENCES `categories` (`id`) ON DELETE CASCADE ON UPDATE CASCADE ) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=latin1 CREATE TABLE `sourcecodes_tags` ( `sourcecode_id` int(11) unsigned NOT NULL, `tag_id` int(11) unsigned NOT NULL, KE

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site

Mysql Error 1452 Foreign Key Constraint Fails

About Us Learn more about Stack Overflow the company Business Learn more about error 1452: cannot add or update a child row: a foreign key constraint fails hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss a foreign key constraint fails mysql insert Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up ERROR 1452: Cannot add http://stackoverflow.com/questions/1253459/mysql-error-1452-cannot-add-or-update-a-child-row-a-foreign-key-constraint-fa or update a child row: a foreign key constraint fails up vote 30 down vote favorite 6 I have created tables in MySQL Workbench as shown below : ORDRE table: Create table Ordre( OrdreID int NOT NULL, OrdreDato date DEFAULT NULL, KundeID int DEFAULT NULL, constraint Ordre_pk primary key(OrdreID), constraint Ordre_fk foreign key(KundeID) references Kunde(KundeID) ) engine = InnoDB; PRODUKT table: Create table Produkt( ProduktID http://stackoverflow.com/questions/21659691/error-1452-cannot-add-or-update-a-child-row-a-foreign-key-constraint-fails int NOT NULL, ProduktBeskrivelse varchar(100) DEFAULT NULL, ProduktFarge varchar(20) DEFAULT NULL, Enhetpris int DEFAULT NULL, constraint Produkt_pk primary key(ProduktID) ) engine = InnoDB; and ORDRELINJE table: Create table Ordrelinje( Ordre int NOT NULL, Produkt int NOT NULL, AntallBestilt int DEFAULT NULL, constraint Ordrelinje_pk primary key(Ordre, Produkt), constraint Ordrelinje_fk foreign key(Ordre) references Ordre(OrdreID), constraint Ordrelinje_fk1 foreign key(Produkt) references Produkt(ProduktID) ) engine = InnoDB; so when I try to insert values into ORDRELINJE table i get : Error Code: 1452. Cannot add or update a child row: a foreign key constraint fails (srdjank.Ordrelinje, CONSTRAINT Ordrelinje_fk FOREIGN KEY (Ordre) REFERENCES Ordre (OrdreID)) I've seen the other posts on this topic, but no luck. Am I overseeing something or ... Any idea what to do? mysql mysql-error-1452 share|improve this question edited Feb 9 '14 at 14:34 Mihai 15.3k52442 asked Feb 9 '14 at 13:37 user3289677 151123 1 possible duplicate of Mysql error 1452 - Cannot add or update a child row: a foreign key constraint fails –Sagar Naliyapara Jul 16 '15 at 5:07 add a comment| 3 Answers 3 active oldest votes up vote 41 down vote Taken from Using FOREIGN KEY Constraints Foreign key relati

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting http://stackoverflow.com/questions/5256703/sql-error-1452-cannot-add-or-update-a-child-row-a-foreign-key-constraint-fail ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join https://shop.cheritz.com/en/questions/view_question/1992 the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up SQL Error: 1452: Cannot add or update a child row: a foreign key constraint fails up vote 3 down vote favorite 1 I have two tables in my database: order; course. order has a column courseid which references error 1452 column id of the course table. Whenever I tried to do saveAll() in CakePHP the above SQL error will display and data wont be saved. sql cakephp share|improve this question edited Nov 3 '15 at 12:12 Rolando Isidoro 2,90411324 asked Mar 10 '11 at 7:31 Vinay 45127 Please add your model code to your question. Only the relationship bindings –JohnP Mar 10 '11 at 7:39 add a comment| 2 Answers 2 active oldest votes up vote 14 down vote accepted foreign key constraint What it sounds is that between your tables you have foreign key constraint in the database. This mean that in the the column course_id you cannot insert values different than ids from the foreign table. The error above means that when you post your data the foreign field is empty or missing. What to look for: 1. Check if in your database the foreign field in the child table can accept NULL. If you have dropdown with values and the default option is empty if the field doesn't accept NULL this error could occur 2. Check your data in the controller if you pass the variable in example: $this->data['Order']['course_id'] if it's empty or missing see point 1. share|improve this answer answered Mar 10 '11 at 9:10 Nik Chankov 5,6891328 add a comment| up vote 0 down vote I am going to respond just for the sake of anyone else with a similar issue looking for an answer. Working with ORM in other frameworks, I made the mistake of trying to assign roles or other data before saving what I was adding a role to. Example: Creating a new user- $user = ORM::factory('user'); $user->username = 'SomeoneSpecial"; if ($user->add(ORM::factory('role', 'login') && $user->save() ) { // continue on with code } The user is created, however in trying to add the role before the user is saved, you end up with a user without a role and that exact error being spit back out at you. share|impr

on this ? >< Comment Author : Xiongpv 2016-08-21 23:58:02 They ship overseas / worldwide. Author : cherry 2016-08-24 12:11:15 Hello, thank you for your inquiry. Yes, we ship overseas as well. If you keep getting an error, you can put your address when you order the item. We will check and fix if there is an error. Thank you. Back to Q&A Company Name : Cheritz | Founder : Sujin Ri | Business Registration Number : 119-20-32459 Address : 26, Insa-dong 5gil, Jongro-gu, Seoul, South Korea | Email : help_en@cheritz.com © 2012 Cheritz Corporation, all rights reserved. Please wait...