[英]#1215 - Cannot add foreign key constraint
I'm working a project with Yiiframwork and I have this table in my data base project 我正在与Yiiframwork合作一个项目,并且我的数据库项目中有此表
CREATE TABLE IF NOT EXISTS `tbl_annonce` (
`id` mediumint(8) unsigned NOT NULL AUTO_INCREMENT,
`idEntreprise` tinyint(3) unsigned NOT NULL
COMMENT 'CONSTRAINT FOREIGN KEY (idEntreprise) REFERENCES tbl_entreprise(id)',
`titre` varchar(100) NOT NULL,
`detailleDiscription` varchar(5000) NOT NULL,
`categorie` varchar(100) DEFAULT NULL,
`typePoste` varchar(100) NOT NULL,
`salaireMin` varchar(80) NOT NULL,
`salaireMax` varchar(80) NOT NULL,
`niveauEtude` varchar(80) NOT NULL,
`niveauExperience` varchar(80) NOT NULL,
`langue` varchar(50) DEFAULT NULL,
`poste` varchar(50) NOT NULL,
`pays` varchar(50) NOT NULL,
`ville` varchar(50) NOT NULL,
`adresse` varchar(80) NOT NULL,
`datePublication` timestamp NOT NULL
DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`etat` varchar(50) NOT NULL,
`photo` varchar(255) NULL,
`nometr` text NOT NULL,
PRIMARY KEY (`id`),
CONSTRAINT `fk_idEntrepriseAnn`
FOREIGN KEY (idEntreprise)
REFERENCES tbl_entreprise(id)
ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=6 ;
I only use 'comment'
because I found it in a tutorial for a yii framework project. 我只使用'comment'
因为我在yii框架项目的教程中找到了它。 I have got the attribute ' idEntreprise
' as FK in my DB but when I entred other 'idEntreprise'
that does note exist in my table entreprise
it was not problem, instead it must be a problem. 我在数据库中将属性' idEntreprise
'设置为FK,但是当我输入确实在表entreprise
存在的其他'idEntreprise'
,这不是问题,而是一定有问题。
So I added 'identreprise'
as Fk and that have this problem now. 因此,我将'identreprise'
添加为Fk,现在出现了此问题。
Hope you understand my problem :/ 希望你理解我的问题:/
can any one helep me plz !! 谁能帮助我!
To define a foreign key on a column, it must fulfil some conditions. 要在列上定义外键,它必须满足一些条件。
Make sure that 确保
tbl_entreprise.id
is indexed. 索引tbl_entreprise.id
列。 idEntreprise tinyint(3) unsigned
in tbl_annonce
matches with that of tbl_entreprise.id
列定义idEntreprise tinyint(3) unsigned
在tbl_annonce
与相匹配tbl_entreprise.id
Refer to : MySQL: Foregin Key Constaints 参考 : MySQL:Foregin关键内容
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