无法添加或更新子行：外键约束失败

Question

These are the create statement for the two tables that i am facing the issue with: First Table:

 CREATE TABLE `hrm__companyteam` (
 `id_team` int(11) NOT NULL AUTO_INCREMENT,
 `id_department` int(11) NOT NULL,
 `team_name` varchar(255) NOT NULL DEFAULT '',
 `notes` mediumtext NOT NULL,
 PRIMARY KEY (`id_team`),
 KEY `id_company` (`id_department`),
 CONSTRAINT `hrm__companyTeam_ibfk_1` FOREIGN KEY (`id_department`) REFERENCES `hrm__companydepartment` (`id_department`) ON DELETE CASCADE,
 CONSTRAINT `hrm__companyteam_ibfk_1` FOREIGN KEY (`id_department`) REFERENCES `hrm__companydepartment` (`id_department`) ON DELETE CASCADE
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8

Second Table

CREATE TABLE `hrm__companyjobtitle` (
 `id_job_title` int(11) NOT NULL AUTO_INCREMENT,
 `id_team` int(11) NOT NULL DEFAULT '0',
 `job_title_name` varchar(255) NOT NULL DEFAULT '',
 `notes` mediumtext NOT NULL,
 PRIMARY KEY (`id_job_title`),
 KEY `id_division` (`id_team`),
 CONSTRAINT `hrm__companyJobTitle_ibfk_1` FOREIGN KEY (`id_team`) REFERENCES `hrm__companyteam` (`id_team`) ON DELETE CASCADE,
 CONSTRAINT `hrm__companyjobtitle_ibfk_1` FOREIGN KEY (`id_team`) REFERENCES `hrm__companyteam` (`id_team`) ON DELETE CASCADE
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8

When i try to execute the following query:

INSERT INTO `hr_db`.`hrm__companyjobtitle` (

`id_job_title` ,
`id_team` ,
`job_title_name` ,
`notes`
)
VALUES (
'1',  '1',  'IT',  ''
)

I get this error:

1452 - Cannot add or update a child row: a foreign key constraint fails ( hr_db . hrm__companyjobtitle , CONSTRAINT hrm__companyJobTitle_ibfk_1 FOREIGN KEY ( id_team ) REFERENCES hrm__companyteam ( id_team ) ON DELETE CASCADE)

Please help... What am i doing wrong. Also please let me know if you need any further details.

Answer 1

I used these statements :

CREATE TABLE `hrm__companyteam` (
    `id_team` INT(11) NOT NULL AUTO_INCREMENT,
    `id_department` INT(11) NOT NULL,
    `team_name` VARCHAR(255) NOT NULL DEFAULT '',
    `notes` MEDIUMTEXT NOT NULL,
    PRIMARY KEY (`id_team`),
    INDEX `id_company` (`id_department`)
)
COLLATE='utf8_general_ci'
ENGINE=InnoDB
AUTO_INCREMENT=4;


CREATE TABLE `hrm__companyjobtitle` (
    `id_job_title` INT(11) NOT NULL AUTO_INCREMENT,
    `id_team` INT(11) NOT NULL DEFAULT '0',
    `job_title_name` VARCHAR(255) NOT NULL DEFAULT '',
    `notes` MEDIUMTEXT NOT NULL,
    PRIMARY KEY (`id_job_title`),
    INDEX `id_division` (`id_team`),
    CONSTRAINT `hrm__companyJobTitle_ibfk_1` FOREIGN KEY (`id_team`) REFERENCES `hrm__companyteam` (`id_team`) ON DELETE CASCADE
)
COLLATE='utf8_general_ci'
ENGINE=InnoDB
AUTO_INCREMENT=4;


INSERT INTO hrm__companyteam (id_team, id_department, team_name, notes) VALUES (1, 1, 'Sales', ''), (2, 2, 'Team no 1', '');

INSERT INTO hrm__companyjobtitle (id_job_title , id_team , job_title_name , notes ) VALUES ( '1', '1', 'IT', '' );

AND ALL of them ran successfully without any error