i've this problem :

Cannot add or update a young child row: a foreign key constraint fails (bytecodete.company_links, CONSTRAINT FK_company_links_1 FOREIGN KEY (id) REFERENCES company (idUser) ON Remove CASCADE ON UPDATE CASCADE)

However i don't really appreciate this happens, and so i will publish my tables here:

//USER TABLE
DROP TABLE IF EXISTS `bytecodete`.`user`;
CREATE TABLE  `bytecodete`.`user` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `email` varchar(255) NOT NULL,
  `password` varchar(255) NOT NULL,
  `type` tinyint(1) unsigned NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `email` (`email`)
)

//COMPANY TABLE
 DROP TABLE IF EXISTS `bytecodete`.`company`;
CREATE TABLE  `bytecodete`.`company` (
  `idUser` int(11) NOT NULL,
  `fantasyName` varchar(55) NOT NULL,
  `corporateName` varchar(55) NOT NULL,
  `cnpj` varchar(14) NOT NULL,
  PRIMARY KEY (`idUser`),
  UNIQUE KEY `cnpj` (`cnpj`),
  CONSTRAINT `company_ibfk_1` FOREIGN KEY (`idUser`) REFERENCES `user` (`id`) 
  ON DELETE CASCADE ON UPDATE CASCADE
)

// COMPANY_LINKS TABLE
  DROP TABLE IF EXISTS `bytecodete`.`company_links`;
  CREATE TABLE  `bytecodete`.`company_links` (
  `id` int(11) NOT NULL DEFAULT '0',
  `idCompany` int(10) unsigned NOT NULL,
   `serviceName` varchar(45) NOT NULL,
   `link` varchar(45) NOT NULL,
   PRIMARY KEY (`id`) USING BTREE,
   CONSTRAINT `FK_company_links_1` FOREIGN KEY (`id`) REFERENCES `company` (`idUser`) 
   ON DELETE CASCADE ON UPDATE CASCADE
   ) 

I understand this exception gives after i attempt to place something within an table where there is a foreign key and that i do not have setup some value for this key. But this is not my situation, here's my output:

11:47:30,809  INFO SessionFactoryObjectFactory:82 - Not binding factory to JNDI, no JNDI name configured
Hibernate: 
    insert 
    into
        bytecodete.user
        (email, password, type) 
    values
        (?, ?, ?)
11:47:30,948 TRACE StringType:133 - binding 'valter.bcc@gmail.com' to parameter: 1
11:47:30,949 TRACE StringType:133 - binding 'U25YM/DOl5k=' to parameter: 2
11:47:30,950 TRACE IntegerType:133 - binding '2' to parameter: 3
Hibernate: 
    insert 
    into
        bytecodete.company
        (cnpj, corporateName, fantasyName, idUser) 
    values
        (?, ?, ?, ?)
11:47:31,214 TRACE StringType:133 - binding '98806728000100' to parameter: 1
11:47:31,215 TRACE StringType:133 - binding 'Semana da Computação e Tecnologia' to parameter: 2
11:47:31,215 TRACE StringType:133 - binding 'SECOT' to parameter: 3
11:47:31,216 TRACE IntegerType:133 - binding '37' to parameter: 4
idCompany=37
Hibernate: 
    select
        company_.idUser,
        company_.cnpj as cnpj9_,
        company_.corporateName as corporat3_9_,
        company_.fantasyName as fantasyN4_9_ 
    from
        bytecodete.company company_ 
    where
        company_.idUser=?
11:47:31,300 TRACE IntegerType:133 - binding '37' to parameter: 1
11:47:31,316 TRACE StringType:172 - returning '98806728000100' as column: cnpj9_
11:47:31,316 TRACE StringType:172 - returning 'Semana da Computação e Tecnologia' as column: corporat3_9_
11:47:31,351 TRACE StringType:172 - returning 'SECOT' as column: fantasyN4_9_
Hibernate: 
    insert 
    into
        bytecodete.company_links
        (idCompany, link, serviceName, id) 
    values
        (?, ?, ?, ?)
11:47:31,353 TRACE IntegerType:133 - binding '37' to parameter: 1
11:47:31,354 TRACE StringType:133 - binding 'http://www.flickr.com/services/api/' to parameter: 2
11:47:31,354 TRACE StringType:133 - binding 'Flickr' to parameter: 3
11:47:31,355 TRACE IntegerType:133 - binding '0' to parameter: 4
11:47:31,433  WARN JDBCExceptionReporter:77 - SQL Error: 1452, SQLState: 23000
11:47:31,452 ERROR JDBCExceptionReporter:78 - Cannot add or update a child row: a foreign key constraint fails (`bytecodete`.`company_links`, CONSTRAINT `FK_company_links_1` FOREIGN KEY (`id`) REFERENCES `company` (`idUser`) ON DELETE CASCADE ON UPDATE CASCADE)

Sorry men disturbing you, however i actually need assist with this, i'm not sure what's happen.

Sincerely, Valter Henrique.

We'd most likely need to visit some code that will help you more, but simply in line with the Place claims, it appears like maybe your foreign key from company_links to company is wrong. Your Place into company_links includes a 37 for idCompany, along with a for id. Your foreign secret is set on id, not idCompany, therefore the 37 ought to be set on id, or even the foreign ought to be transformed to idCompany.