Error 1452 Mysql

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Cannot Add Or Update A Child Row

programmers, just like you, helping each other. Join them; it only takes a minute: Sign up ERROR 1452: Cannot add or update a child row: a foreign key constraint fails up vote 30 down vote favorite 6 I have created tables in MySQL Workbench as shown below : ORDRE table: Create table Ordre( OrdreID int mysql error 1005 NOT NULL, OrdreDato date DEFAULT NULL, KundeID int DEFAULT NULL, constraint Ordre_pk primary key(OrdreID), constraint Ordre_fk foreign key(KundeID) references Kunde(KundeID) ) engine = InnoDB; PRODUKT table: Create table Produkt( ProduktID int NOT NULL, ProduktBeskrivelse varchar(100) DEFAULT NULL, ProduktFarge varchar(20) DEFAULT NULL, Enhetpris int DEFAULT NULL, constraint Produkt_pk primary key(ProduktID) ) engine = InnoDB; and ORDRELINJE table: Create table Ordrelinje( Ordre int NOT NULL, Produkt int NOT NULL, AntallBestilt int DEFAULT NULL, constraint Ordrelinje_pk primary key(Ordre, Produkt), constraint Ordrelinje_fk foreign key(Ordre) references Ordre(OrdreID), constraint Ordrelinje_fk1 foreign key(Produkt) references Produkt(ProduktID) ) engine = InnoDB; so when I try to insert values into ORDRELINJE table i get : Error Code: 1452. Cannot add or update a child row: a foreign key constraint fails (srdjank.Ordrelinje, CONSTRAINT Ordrelinje_fk FOREIGN KEY (Ordre) REFERENCES Ordre (OrdreID)) I've seen the other posts on this topic, but no luck. Am I overseeing something or ... Any idea what to do? mysql mysql-error-1452 share|improve this question edited Feb 9 '14 at 14:34 Mihai 15.3

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Mysql Error 1452 23000

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Mysql Insert

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 Error 1452 MySQL up vote 2 down vote favorite http://stackoverflow.com/questions/21659691/error-1452-cannot-add-or-update-a-child-row-a-foreign-key-constraint-fails Inserting data into an empty table, but got error 1452. I am not sure why MySQL mentions the NameInfo table within the error. CREATE TABLE NameInfo ( Language VARCHAR(7) NOT NULL, Status VARCHAR(13) NOT NULL, Standard VARCHAR(13) NOT NULL, Name VARCHAR(13) NOT NULL, Name_ID INT(4) NOT NULL, Place_ID INT(9) NOT NULL, Supplier_ID INT(4) NOT NULL, Date_Supplied DATE NOT NULL, PRIMARY KEY (Name_ID), FOREIGN KEY (Supplier_ID) REFERENCES Supplier(Supplier_ID), FOREIGN http://stackoverflow.com/questions/20028196/error-1452-mysql KEY (Place_ID) REFERENCES Place(Place_ID) ); CREATE TABLE Departments ( Dept_ID INT(6) NOT NULL, Dept_NAME VARCHAR(25) NOT NULL, DeptHead_ID INT(6) NOT NULL, DeptAA VARCHAR(20) NOT NULL, ParentDept_ID INT(4) NOT NULL, Location VARCHAR(10) NOT NULL, DeptType VARCHAR(12) NOT NULL, Primary key (Dept_ID) ); CREATE TABLE Employee ( Emp_ID INT(6) NOT NULL, Name VARCHAR(15) NOT NULL, Dept_ID INT(6) NOT NULL, Tax_ID INT(4) NOT NULL, Country VARCAR(15) NOT NULL, Hire_Date DATE NOT NULL, Birth_Date DATE NOT NULL, Salary INT(6) NOT NULL, Bonus INT(6) NOT NULL, AddressInfo VARCHAR(30) NOT NULL, PRIMARY KEY(Emp_ID), FOREIGN KEY(Dept_ID) REFERENCES Departments(Dept_ID) ); Inserted data to parent table, Departments, before child table, Employee. INSERT INTO Departments VALUES (040124,'Human Resource Division',405802,'Mohammed Siddiqui',1001,'California','HR'); INSERT INTO Employee VALUES (901126,'Kenneth Tran',040126,3013,'United States',06/01/2013,06/01/1992,80430,500,'N. 2nd St. Santa Clara, CA.'); ERROR 1452 (23000): Cannot add or update a child: a foreign key constraint fails ('namesinc'_'employee', CONSTRAINT 'employee-ibfk_1 'FOREIGN KEY ('Dept_ID') REFERENCES 'DEPARTMENTS' ('DEPT_ID')) Please let me know if I can provide additional information. mysql foreign-keys share|improve this question edited Nov 17 '13 at 7:52 asked Nov 17 '13 at 7:10 Scott Davis 316624 add a comment| 1 Answer 1 active oldest votes up vote 4 down vote accepted Error 1452 indicates an insertion failed because a foreign key constraint cou

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 http://stackoverflow.com/questions/22210461/mysql-error-code-1452-foreign-key-constraint 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, http://stackoverflow.com/questions/14222967/mysql-foreign-key-constraint-error-1452-cannot-add-or-update-child-row just like you, helping each other. Join them; it only takes a minute: Sign up MySQL Error Code 1452 Foreign Key Constraint up vote 2 down vote favorite I'm receiving an error when I attempt to create error 1452 two tables. There was a multivalued dependency, so I separated the tables and came up with this: CREATE TABLE NAME ( NameID Integer NOT NULL AUTO_INCREMENT, Name varChar(255) NOT NULL, CONSTRAINT NAME_PK PRIMARY KEY(NameID) ); CREATE TABLE PHONE ( NameID Integer NOT NULL, PhoneNumber varChar(15) NOT NULL, NumType varChar(5) NOT NULL, CONSTRAINT PHONE_FK FOREIGN KEY(NameID) REFERENCES NAME(NameID), CONSTRAINT PHONE_PK PRIMARY KEY(NameID) ); But when attempting to add values with this code: INSERT INTO NAME error 1452 mysql (NameID, Name) VALUES (default, 'John Doe'); INSERT INTO PHONE (NameID, PhoneNumber, NumType) VALUES (default, '706-782-4719', 'Home'); I receive the infamous 1452 error: Error Code: 1452. Cannot add or update a child row: a foreign key constraint fails (`phone_mcneill`.`PHONE`, CONSTRAINT `PHONE_FK` FOREIGN KEY (`NameID`) REFERENCES `NAME` (`NameID`)) I am not entirely sure what this means as I have NameID autoincrementing in the first table. I can't have it auto_increment in the second one as well as it's a foreign key, correct? Thanks in advance for the help. mysql sql database foreign-keys mysql-error-1452 share|improve this question asked Mar 5 '14 at 22:10 Archibald 272215 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote accepted You have defined a foreign key constraint on NameID column i.e in table PHONE using insert for phone table you have passed default against NameID ,but NameID is pointing to NAME table and expecting to have the inserted record id from NAME table it doesn't have a default value as per the docs When a new AUTO_INCREMENT value has been generated, you can also obtain it by executing a SELECT LAST_INSERT_ID() So your second insert can use the inserted if from NAME table like INSERT INTO NAME (NameID, NAME) VALUES (DEFAULT, 'John Doe'); INSERT INTO PHONE (NameID, PhoneNumber, NumType) VALUES (LAST_INSERT_ID(), '706-782-4719', '

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 constraint - Error 1452 - Cannot add or update child row up vote 3 down vote favorite I've used the other posts on 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 $$ CREATE TABLE `tblItemCosts` ( `Cost` decimal(10,2) DEFAULT NULL, `VendorID` int(11) NOT NULL, `ItemID` varchar(10) NOT NULL, KEY `VendorID_idx` (`VendorID`), KEY `ItemID_idx` (`ItemID`), CONSTRAINT `VendorID` FOREIGN KEY (`VendorID`) REFERENCES `tblVendors` (`VendorID`) ON DELETE NO ACTION ON UPDATE NO ACTION ) ENGINE=InnoDB DEFAULT CHARSET=latin1$$ delimiter $$ CREATE TABLE `tblOrderItems` ( `OrderItemID` int(11) NOT NULL AUTO_INCREMENT, `OrderNum` int(11) NOT NULL, `PayPalTxnID` int(10) DEFAULT NULL, `Description` varchar(225) DEFAULT NULL, `Quantity` int(11) DEFAULT NULL, `UnitPrice` decimal(10,2) DEFAULT NULL, `ItemStatus` varchar(30) DEFAULT NULL, `TrackingNumber` varchar(50) DEFAULT NULL, `ShippingCost` decimal(10,2) DEFAULT NULL, `ItemID` varchar(50) DEFAULT NULL, `TotalPrice` decimal(10,2) DEFAULT NULL, PRIMARY KEY (`OrderItemID`,`OrderNum`), UNIQUE KEY `PayPalTxnID_UNIQUE` (`PayPalTxnID`), KEY `PayPalTxnID_idx`