Mysql Workbench Error 1452
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here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the mysql error 1452 foreign key constraint fails workings and policies of this site About Us Learn more about Stack cannot add or update a child row a foreign key constraint fails mysql Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs cannot add or update a child row a foreign key constraint fails on delete cascade on update cascade) Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join error code 1452 mysql insert them; it only takes a minute: Sign up ERROR 1452: Cannot add or update a child row: a foreign key constraint fails up vote 4 down vote favorite I have created two tables in MySQL 5.6.11 as shown below by means of MySQL Workbench 5.2.47. The country table: delimiter $$ CREATE TABLE `country` ( `id` int(11) NOT NULL AUTO_INCREMENT,
Set Foreign_key_checks=0 Mysql
`country_name` varchar(45) DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INC REMENT=2 DEFAULT CHARSET=utf8$$ The state_table: delimiter $$ CREATE TABLE `state_table` ( `id` int(11) NOT NULL AUTO_INCREMENT, `state_name` varchar(45) DEFAULT NULL, `country_id` int(11) DEFAULT NULL, PRIMARY KEY (`id`), CONSTRAINT `country_fk` FOREIGN KEY (`id`) REFERENCES `country` (`id`) ON DELETE CASCADE ON UPDATE CASCADE ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8 COMMENT=''$$ There is one row in the country table with the id 1. It allows only one (child) row to be inserted into its child table state_table. If more rows are attempted, then the following error occurs. ERROR 1452: Cannot add or update a child row: a foreign key constraint fails (social_networking.state_table, CONSTRAINT country_fk FOREIGN KEY (id) REFERENCES country (id) ON DELETE CASCADE ON UPDATE CASCADE) SQL Statement: INSERT INTO `social_networking`.`state_table` (`id`, `state_name`, `country_id`) VALUES ('2', 'xxx', '1') Actually, I'm trying to map these tables using an ORM (JPA) where I always see only OneToOne relationship. What am I missing? mysql mysql-workbench mysql-error-1452 share|improve this question edited Aug 27 '15 at 12:07 asked May 8 '13 at 17:53 Tiny 5,24252191
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Mysql Foreign Key Constraint Fails
have Meta Discuss the workings and policies of this site About add foreign key to existing table mysql Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting mysql on update cascade 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 6.2 http://stackoverflow.com/questions/16447137/error-1452-cannot-add-or-update-a-child-row-a-foreign-key-constraint-fails million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Visual MySQL Workbench Error: 1452 foreign key constraint fails? up vote 1 down vote favorite Been looking at this for two days and am at a loss as to what this means. I know it means "exactly what http://stackoverflow.com/questions/19801627/visual-mysql-workbench-error-1452-foreign-key-constraint-fails it says" but I don't know how to fix it. Can someone explain it to me in layman's terms and help me out? ERROR: Error 1452: Cannot add or update a child row: a foreign key constraint fails (`sls11n`.`dependent`, CONSTRAINT `fk_dependent_employee1` FOREIGN KEY (`emp_id`) REFERENCES `employee` (`emp_id`) ON DELETE NO ACTION ON UPDATE NO ACTION) INSERT INTO `sls11n`.`dependent` (`dep_id`, `emp_id`, `dep_ssn`, `dep_fname`, `dep_lname`, `dep_street`, `dep_city`, `dep_state`, `dep_zip`, `dep_phone`, `dep_email`, `dep_notes`) VALUES (NULL, 13, 123456789, 'Gary', 'Hart', 'West St', 'San Diego', 'CA', '23424', '1234567890', 'garyhart@me.com', NULL) Here's the script that I believe is relevant: -- ----------------------------------------------------- -- Table `sls11n`.`employee` -- ----------------------------------------------------- DROP TABLE IF EXISTS `sls11n`.`employee` ; SHOW WARNINGS; CREATE TABLE IF NOT EXISTS `sls11n`.`employee` ( `emp_id` TINYINT UNSIGNED NOT NULL AUTO_INCREMENT, `emp_ssn` INT UNSIGNED NOT NULL, `emp_fname` VARCHAR(15) NOT NULL, `emp_lname` VARCHAR(20) NOT NULL, `emp_street` VARCHAR(45) NOT NULL, `emp_city` VARCHAR(45) NOT NULL, `emp_state` CHAR(2) NOT NULL, `emp_zip` CHAR(9) NOT NULL, `emp_phone` CHAR(15) NOT NULL, `emp_email` VARCHAR(100) NOT NULL, `emp_doh` DATE NOT NULL, `em
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 http://stackoverflow.com/questions/23045675/mysql-workbench-error-1452-cannot-add-or-update-a-child-row-a-foreign-key-constr more about Stack Overflow the company Business Learn more about hiring developers or http://stackoverflow.com/questions/8801918/mysql-error-1452-cannot-add-or-update-child-row 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 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up MySql Workbench error 1452 cannot add or update a foreign key child row a foreign key constraint fails up vote -2 down vote favorite Here is my table and I keep getting this error. Everything is good to go until I execute the code that I have put in bold at the bottom. Im really close to completing this table but ive tried everything to solve this error but it keeps coming up. Please Help me Thank You` UPDATE foreign key constraint I took your guys suggestions and changed the inserted data now im getting an error 1136 which is column doesnt match value count for row 1 which is visit ID so its a datatype problem but ive tried everything and I cant figure it out IM SO CLOSE TO BEING DONE PLEASE HELP! Create Schema Visit; create table roomtableS( RoomID char (2) not null, RoomNum char (2) not null, Charge integer not null, CONSTRAINT RoomTable_PK Primary Key(RoomID)); Insert into roomtableS values ('01','1A',125.00), ('02','1A',150.00), ('03','1A',100.00), ('04','1A',200.00), ('05','2B',150.00), ('06','2B',125.00), ('07','3C',200.00), ('08','3C',125.00), ('09','3C',100.00); SELECT * FROM ROOMTABLES; create table PATIENT( PatientID char(5) not null, PatientName Char(25) not null, PatientEmail Char(30) null, PatientPhoneNumber Char(10) null, PatientAddress Char(100) null, constraint PATIENT_PK Primary key(PatientID)); insert PATIENT values ('P1', 'Bruce Willis', 'bwillis@mail.org', '2022223333', '1111 Cosmic dr'), ('P2', 'Demi Moore', 'moore@email.net', '2021113333', '1112 Cosmic dr'), ('P3', 'Andre Agassi', 'agassi@mail.org', '2023333333', '1113 Cosmic dr'), ('P4', 'Jet Lee', 'jetlee@email.net', '2023334444', '1114 Chinatown ct'), ('P5', 'Jim Carey', 'carey@email.net', '2023335555', '1115 United dr'), ('P6', 'Bruce Lee', 'bruce@gmail.com', '2023336666', '1115 Chinatown ct'); select* From PATIENT; Create table SERVICETable( ServiceID Char (5) not null, ServiceTreatment Char(25) not null, ServiceCost numeric not null, constraint SERVICE_PK Primary Key(ServiceID)); insert SERVICETable values ('S1','Sore throat', 10.00), ('S2', 'Fever',
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 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Mysql error #1452 - Cannot add or update child row up vote 1 down vote favorite EDIT: My problem was because of the tables used diffrent engines. Table Chart used MyISAM and Chartdata used InnoDB. i have a very simple DB model but for some reason i cant get the Foreign Key to work. I have created the DB with Mysql Workbench and i have two rows in the 'Chart' table with id 3 and 4. When i try to add a row in chartdata i get this error: INSERT INTO `charts`.`Chartdata` ( `idChartdata` , `param1` , `param2` , `Chart_id` ) VALUES ( NULL , '2012-01-10 05:00:00', '58', '3' ) #1452 - Cannot add or update a child row: a foreign key constraint fails (charts.Chartdata, CONSTRAINTfk_Chartdata_ChartFOREIGN KEY (Chart_id) REFERENCESChart(idChart) ON DELETE CASCADE ON UPDATE CASCADE) I am sure that the foreign key exists, and i have tried to recreate the tables severeal times (with minor changes). Link to DB model: http://i.stack.imgur.com/qKZlh.png This is a SQL dump from PhpMyAdmin: CREATE TABLE IF NOT EXISTS `Chartdata` ( idChartdata int(11) NOT NULL AUTO_INCREMENT, param1 varchar(500) DEFAULT NULL, param2 varchar(500) DEFAULT NULL, Chart_id int(11) NOT NULL, PRIMARY KEY (idChartdata,Chart_id), KEY fk_Chartdata_Chart (Chart_id) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=10 ; ALTER TABLE Chartdata ADD CONSTRAINT fk_Chartdata_Chart FOREIGN KEY (Chart_id) REFERENCES Chart (idChart) ON DELETE CASCADE