Mysql Error Nr. 1452
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Error Code 1452 Mysql Workbench
Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping mysql error 1452 foreign key constraint fails 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 two tables. There was a a foreign key constraint fails mysql insert 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 (NameID, Name) VALUES (default, 'John Doe'); INSERT INTO
Cannot Add Or Update A Child Row A Foreign Key Constraint Fails On Delete Cascade On Update Cascade)
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', 'Home'); And you can grab results from both tables by joining them select * from NAME JOIN
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Set Foreign_key_checks=0 Mysql
Stored Programs and Views INFORMATION_SCHEMA Tables MySQL Performance Schema MySQL sys Schema Connectors and APIs Extending MySQL MySQL Enterprise Edition MySQL Workbench MySQL 5.7 Frequently Asked Questions Errors, Error Codes, and Common Problems http://stackoverflow.com/questions/22210461/mysql-error-code-1452-foreign-key-constraint Sources of Error Information Types of Error Values Server Error Codes and Messages Client Error Codes and Messages Problems and Common Errors How to Determine What Is Causing a Problem Common Errors When Using MySQL Programs Access denied Can't connect to [local] MySQL server Lost connection to MySQL server Client does not support authentication protocol Password Fails When Entered Interactively Host 'host_name' is blocked Too many http://dev.mysql.com/doc/en/error-messages-server.html connections Out of memory MySQL server has gone away Packet Too Large Communication Errors and Aborted Connections The table is full Can't create/write to file Commands out of sync Ignoring user Table 'tbl_name' doesn't exist Can't initialize character set File Not Found and Similar Errors Table-Corruption Issues Administration-Related Issues Problems with File Permissions How to Reset the Root Password What to Do If MySQL Keeps Crashing How MySQL Handles a Full Disk Where MySQL Stores Temporary Files How to Protect or Change the MySQL Unix Socket File Time Zone Problems Query-Related Issues Case Sensitivity in String Searches Problems Using DATE Columns Problems with NULL Values Problems with Column Aliases Rollback Failure for Nontransactional Tables Deleting Rows from Related Tables Solving Problems with No Matching Rows Problems with Floating-Point Values Optimizer-Related Issues Table Definition-Related Issues Problems with ALTER TABLE TEMPORARY Table Problems Known Issues in MySQL Restrictions and Limits Indexes MySQL Glossary Related Documentation MySQL 5.7 Release Notes Download this Manual PDF (US Ltr) - 35.6Mb PDF (A4) - 35.6Mb PDF (RPM) - 34.6Mb EPUB - 8.7Mb HTML Download (TGZ) - 8.4Mb HTML Download (Zip) - 8.5Mb HTML Download (RPM) - 7.3Mb Eclipse Doc Plugin (TGZ) - 9.3Mb Eclipse
Connectors More MySQL.com Downloads Developer Zone Section Menu: Documentation Home MySQL 5.5 Reference Manual Preface and Legal Notices General Information Installing and Upgrading MySQL Tutorial MySQL Programs MySQL Server Administration Security Backup and Recovery Optimization Language Structure Globalization https://dev.mysql.com/doc/refman/5.5/en/error-messages-server.html Data Types Functions and Operators SQL Statement Syntax The InnoDB Storage Engine Alternative Storage http://www.java-forum.org/thema/error-1452-cannot-add-or-update-a-child-row-a-foreign-key-constraint-fails.136538/ Engines High Availability and Scalability Replication MySQL Cluster NDB 7.2 Partitioning Stored Programs and Views INFORMATION_SCHEMA Tables MySQL Performance Schema Connectors and APIs Extending MySQL MySQL Enterprise Edition MySQL Workbench MySQL 5.5 Frequently Asked Questions Errors, Error Codes, and Common Problems Sources of Error Information Types of Error Values Server Error Codes and Messages Client Error foreign key Codes and Messages Problems and Common Errors How to Determine What Is Causing a Problem Common Errors When Using MySQL Programs Access denied Can't connect to [local] MySQL server Lost connection to MySQL server Client does not support authentication protocol Password Fails When Entered Interactively Host 'host_name' is blocked Too many connections Out of memory MySQL server has gone away Packet Too Large Communication Errors and Aborted Connections The foreign key constraint table is full Can't create/write to file Commands out of sync Ignoring user Table 'tbl_name' doesn't exist Can't initialize character set File Not Found and Similar Errors Table-Corruption Issues Administration-Related Issues Problems with File Permissions How to Reset the Root Password What to Do If MySQL Keeps Crashing How MySQL Handles a Full Disk Where MySQL Stores Temporary Files How to Protect or Change the MySQL Unix Socket File Time Zone Problems Query-Related Issues Case Sensitivity in String Searches Problems Using DATE Columns Problems with NULL Values Problems with Column Aliases Rollback Failure for Nontransactional Tables Deleting Rows from Related Tables Solving Problems with No Matching Rows Problems with Floating-Point Values Optimizer-Related Issues Table Definition-Related Issues Problems with ALTER TABLE TEMPORARY Table Problems Known Issues in MySQL Restrictions and Limits Indexes MySQL Glossary Related Documentation MySQL 5.5 Release Notes Download this Manual PDF (US Ltr) - 26.7Mb PDF (A4) - 26.7Mb PDF (RPM) - 25.8Mb EPUB - 6.7Mb HTML Download (TGZ) - 6.4Mb HTML Download (Zip) - 6.5Mb HTML Download (RPM) - 5.5Mb Eclipse Doc Plugin (TGZ) - 7.1Mb Eclipse Doc Plugin (Zip) - 8.8Mb Man Pages (TGZ) - 165.9Kb Man Pages (Zip) - 271.6Kb Info (Gzip) - 2.5Mb Info (Zip) - 2.5Mb Excerpts from this Manua
Dieses Thema Error 1452: Cannot add or update a child row: a foreign key constraint fails im Forum "Datenbankprogrammierung" wurde erstellt von dogano, 21. Mai 2012. Thema: Error 1452: Cannot add or update a child row: a foreign key constraint fails Hallo liebe Gemeinde, Ich habe ein kleines Problem, was ich nicht auf die Reihe kriege.. Ich kriege eine... dogano Hallo liebe Gemeinde, Ich habe ein kleines Problem, was ich nicht auf die Reihe kriege.. Ich kriege eine Fehlermeldung, mit der ich nichts zu anfangen weiß: Code (SQL): INSERT INTO leasing VALUES(2,"Apple","Jobs","01.01.01","01.01.01","01.01.01","01.01.01","763,76€",2,2,3,2,3) Error Code: 1452. Cannot ADD OR UPDATE a child ROW: a FOREIGN KEY CONSTRAINT fails (`mydb`.`leasing`, CONSTRAINT `fk_Leasing_Lizenz1` FOREIGN KEY (`Lizenz_Lizenz_ID`, `Lizenz_PerKu_PerKu_ID`, `Lizenz_Produkt_Produkt_ID`) REFERENCES `lizenz` (`Lizenz_ID`, `PerKu_PerKu_ID`, `Pr) Weiß einer woran das liegt? Ich habe mal gelesen dass man die Elterntabellen(in dme Fall Perku,Lizenz und Produkt) füllen muss bevor man die Kindtabelle füllen kann. Aber ich hab in jeder Tabelle 7 Einträge und kann trotzdem hier nicht mehr als einen Eintrag machen. Ich freu mich über jede Antwort.. Liebe Grüße, dogano Zuletzt von einem Moderator bearbeitet: 22. Mai 2012 Anzeige Vielleicht hilft dir dieses Tutorial hier weiter --> *Klick* SlaterB poste die Tabellendefintion mit ihren Fremdschlüsseln und die vorhandenen Werte in den anderen Tabellen, du versuchst irgendwas einzufügen, was nicht gefällt, von außen kann man nicht wissen welcher der 13 Werte das ist normale Anführungszeichen sehen in jedem Fall verdächtig aus, verwendest du das wirklich so wie hier gepostet? funktionieren anderen Inserts, hast