Error 1452 No Mysql

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Mysql Error 1452 Foreign Key

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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 be

Mysql Error Code 1452

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, KEY `sourcecode

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Cannot Add Or Update A Child Row A Foreign Key Constraint Fails Mysql

more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us a foreign key constraint fails mysql insert Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like http://stackoverflow.com/questions/1253459/mysql-error-1452-cannot-add-or-update-a-child-row-a-foreign-key-constraint-fa you, helping each other. Join them; it only takes a minute: Sign up MySQL Error: #1452 - Cannot add or update a child row: a foreign key constraint fails up vote 1 down vote favorite I am able to successfully insert a row in the business table but not the business_contact table. Whenever I try to insert http://stackoverflow.com/questions/17121405/mysql-error-1452-cannot-add-or-update-a-child-row-a-foreign-key-constraint a row in the business_contact table I get the following error: #1452 - Cannot add or update a child row: a foreign key constraint fails Although the row that I'm attempting to insert into the business_contact table has a BusinessID that already exists in the business table. business_contact failed insert statement INSERT INTO business_contact(BusinessID, BusinessContactTypeID, BusinessContactData) VALUES (1, 1, '0097336031000'); mysql database foreign-keys foreign-key-relationship share|improve this question edited Jun 15 '13 at 8:13 asked Jun 15 '13 at 7:53 AlGallaf 1073724 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote accepted You should check the following in your business and contact_type_lookup table: 1. business table has BusinessID value that you are trying to insert into business_contact 2.contact_type_lookuptable hasContactTypeIDvalue that you are trying to insert into business_contact This error is related to either missing BusinessID and or missing ContactTypeID. To verify this please select the BusinessID record from business table and ContactTypeID from contact_type_lookup table. For example: If you are executing the following

here for a quick overview of the site Help Center Detailed answers to http://stackoverflow.com/questions/14222967/mysql-foreign-key-constraint-error-1452-cannot-add-or-update-child-row any questions you might have Meta Discuss the workings and http://stackoverflow.com/questions/19770473/mysql-foreign-key-error-1452 policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow error 1452 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 MySQL Foreign key constraint - Error 1452 - Cannot add or update child row up vote 3 down vote favorite I've used the other posts on mysql error 1452 this topic, but I'm having no luck. Here's the code I execute: UPDATE tblOrderItems SET `ItemID` = 0004 WHERE `OrderNum`= 203 AND `OrderItemID` = 26 Here's my error: Error Code: 1452. Cannot add or update a child row: a foreign key constraint fails (`cai0066`.`tblOrderItems`, CONSTRAINT `ItemID` FOREIGN KEY (`ItemID`) REFERENCES `tblCatalogItems` (`ItemID`)) Notes: It happens when I either INSERT or UPDATE into tblOrderItems. tblCatalogItems does have an ItemID of 0004. See: this Here are the create statements generated by MySQL Workbench: delimiter $$ CREATE TABLE `tblCatalogItems` ( `ItemID` varchar(10) NOT NULL DEFAULT '', `ItemName` varchar(50) DEFAULT NULL, `Wholesale` decimal(10,2) DEFAULT NULL, `Cost5-10` decimal(10,2) DEFAULT NULL, `Cost11-19` decimal(10,2) DEFAULT NULL, `Cost20` decimal(10,2) DEFAULT NULL, `Retail` decimal(10,2) DEFAULT NULL, PRIMARY KEY (`ItemID`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1$$ delimiter $$ CREATE TABLE `tblItemCosts` ( `Cost` decimal(10,2) DEFAULT NULL, `VendorID` int(11) NOT NULL, `ItemID` varchar(10) NOT NULL, KEY `VendorID_idx` (`VendorID`), KEY `ItemID_idx` (`ItemID`), CONSTRAINT `VendorI

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 ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question 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 MySQL Foreign Key error 1452 up vote 0 down vote favorite When I go to try to add records to my client and/or the site table I get the following error. Schema Creation Failed: Cannot add or update a child row: a foreign key constraint fails (db_2_6ceaf.client, CONSTRAINT client2offer FOREIGN KEY (clientID) REFERENCES offer_to_client (clientID) ON DELETE NO ACTION ON UPDATE NO ACTION): Schema: SQL: SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0; SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0; SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='TRADITIONAL,ALLOW_INVALID_DATES'; -- ----------------------------------------------------- -- Table `offer_to_category` -- ----------------------------------------------------- CREATE TABLE IF NOT EXISTS `offer_to_category` ( `offerID` INT UNSIGNED NOT NULL , `categoryID` INT UNSIGNED NOT NULL , INDEX `offer_to_category` (`offerID` ASC, `categoryID` ASC) , INDEX `o2c_categoryID` (`categoryID` ASC) ) ENGINE = InnoDB; -- ----------------------------------------------------- -- Table `offer_to_client` -- ----------------------------------------------------- CREATE TABLE IF NOT EXISTS `offer_to_client` ( `offerID` INT UNSIGNED NOT NULL , `clientID` INT UNSIGNED NOT NULL , INDEX `offer_to_client` (`offerID` ASC, `clientID` ASC) , INDEX `o2cl_clientID` (`clientID` ASC) ) ENGINE = InnoDB; -- ----------------------------------------------------- -- Table `offer` -- ----------------------------------------------------- CREATE TABLE IF NOT EXISTS `offer` ( `offerID` INT UNSIGNED NOT NULL AUTO_INCREMENT , `of