error 150 mysql create table
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 mysql can't create table errno 150 foreign key developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question mysql error 1005 can't create table 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; errno 150 mysql foreign key it only takes a minute: Sign up MySQL: Can't create table (errno: 150) up vote 121 down vote favorite 18 I am trying to import a .sql file and its failing on creating tables. Here's the query that fails: can t create table errno 121 CREATE TABLE `data` ( `id` int(10) unsigned NOT NULL, `name` varchar(100) NOT NULL, `value` varchar(15) NOT NULL, UNIQUE KEY `id` (`id`,`name`), CONSTRAINT `data_ibfk_1` FOREIGN KEY (`id`) REFERENCES `keywords` (`id`) ON DELETE CASCADE ON UPDATE CASCADE ) ENGINE=InnoDB DEFAULT CHARSET=latin1; I exported the .sql from the the same database, I dropped all the tables and now im trying to import it, why is it failing? MySQL: Can't create table './dbname/data.frm' (errno: 150) sql mysql phpmyadmin mysql-error-1005 share|improve this question edited Oct
Error On Rename Of (errno 150)
31 '10 at 0:37 OMG Ponies 198k36356415 asked Oct 31 '10 at 0:24 gtilx 75421018 1 For essentially all the causes of this error, here is an exhaustive resource for what causes errno 150 (and errno 121/other foreign key errors) in MySQL. –John Smith Sep 29 '12 at 0:47 15 I've found that the columns must be identical (even the unsigned flag must match). –Justin Skiles Dec 19 '12 at 19:54 3 @JohnSmith ... where? –Charles Wood Jul 29 '13 at 17:07 3 I suggest reading this blog post that lists 10 possible causes: verysimple.com/2006/10/22/… –Mark Amery Jan 2 '14 at 13:54 1 @trejder Curses! –Charles Wood Nov 7 '14 at 17:16 | show 2 more comments 27 Answers 27 active oldest votes up vote 134 down vote accepted From the MySQL - FOREIGN KEY Constraints Documentation: If you re-create a table that was dropped, it must have a definition that conforms to the foreign key constraints referencing it. It must have the correct column names and types, and it must have indexes on the referenced keys, as stated earlier. If these are not satisfied, MySQL returns Error 1005 and refers to Error 150 in the error message, which means that a foreign key constraint was not correctly formed. Similarly, if an ALTER TABLE fails due to Error 150, this means that a foreign key definition would be incorrectly formed forhere for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and
Supports Transactions, Row-level Locking, And Foreign Keys
policies of this site About Us Learn more about Stack Overflow the cannot resolve table name close to company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags can t create table errno 150 django 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 http://stackoverflow.com/questions/4061293/mysql-cant-create-table-errno-150 takes a minute: Sign up MySQL ERROR 1005: Can't create table (errno: 150) up vote 6 down vote favorite I am trying to create the following table create table messaInScena ( data date, ora time, spazio varchar(20), spettacolo varchar(40), postiDisponibili smallint, prezzoIntero decimal(5,2), prezzoRidotto decimal(5,2), prezzoStudenti decimal(5,2), primary key (data, ora, spazio), foreign key (spazio) references spazio(nome) on update cascade on http://stackoverflow.com/questions/17812616/mysql-error-1005-cant-create-table-errno-150 delete set null, foreign key (spettacolo) references spettacolo(titolo) on update cascade on delete set null, constraint RA3_1 check (postiDisponibili >= 0) ) ; but I get the following error: Error Code: 1005 Can not create table 'teatrosql.messainscena' (errno: 150) The tables that are referenced by foreign keys are: create table spazio ( nome varchar(20) primary key, indirizzo varchar(40) not null, pianta varchar(20), capienza smallint ); create table spettacolo ( titolo varchar(40) primary key, descrizione LONGBLOB, annoProduzione char(4) ); I have already verified that the fk are unique and that there are no typos (but given a control also you that you never know :D). As you can see the reference fields are primary keys. between fields and fk reference types and dimensions coincide .. where am I wrong?? the the other tables of DB create table teatro ( nome varchar(20) primary key, telefono varchar(15), fax varchar(15), indirizzo varchar(40) not null, email varchar(30), url varchar(30) ); create table biglietteria ( nome varchar(20) primary key, indirizzo varchar(40) not null, email varchar(30), telefono varchar(15), teatro varchar(20), foreign key (teatro) references teatro(nome) on ulog in tour help Tour Start here for a quick overview of the site Help Center Detailed answers http://dba.stackexchange.com/questions/80435/mysql-create-table-shows-error-1005-errno-150 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 https://mariadb.org/mariadb-innodb-foreign-key-constraint-errors/ Learn more about hiring developers or posting ads with us Database Administrators Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is create table a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise t create table to the top Mysql Create table shows ERROR 1005 errno 150 up vote 0 down vote favorite I am trying to make a junction table, but I getting a ERROR 1005 errno 150 CREATE TABLE 61furiousFistPokemon( cardNumber int NOT NULL PRIMARY KEY, pokemonName VARCHAR(12), type VARCHAR(10), stage VARCHAR(10), evolvesFrom VARCHAR(12), HP INT, retreatCost INT, weakness VARCHAR(10), weaknessAmount VARCHAR(5), resistance VARCHAR(5), resistanceAmount VARCHAR(5) ); CREATE TABLE cardTags ( tagId int NOT NULL AUTO_INCREMENT PRIMARY KEY, tagName VARCHAR(60) NOT NULL ); CREATE TABLE 61furiousFistPokemonTags ( tagId int NOT NULL AUTO_INCREMENT PRIMARY KEY, pokemonCardNumber int, tagName VARCHAR(60), FOREIGN KEY (pokemonCardNumber) REFERENCES 61furiousFistPokemon(cardNumber), FOREIGN KEY (tagName) REFERENCES cardTags(tagName) ); Any help would be greatly appreciated. mysql innodb foreign-key table share|improve this question edited Oct 17 '14 at 15:23 RolandoMySQLDBA 107k15138274 asked Oct 17 '14 at 3:43 user50479 add a comment| 3 Answers 3 active oldest votes up vote 1 down vote tagName column i
for Developers MariaDB Contributor Agreement MariaDB Contributor Agreement FAQs Community Ambassadors Events Past Events and Conferences Sponsor Sponsors List of Donors Blog About MariaDB Sponsors Governance Logos and Badges MariaDB Trademark Usage Statistics Service Providers Maintenance Policy Security Policy Download Learn Get Involved Social Media Getting Started for Developers MariaDB Contributor Agreement MariaDB Contributor Agreement FAQs Community Ambassadors Events Past Events and Conferences Sponsor Sponsors List of Donors Blog HomeGeneralMariaDB: InnoDB foreign key constraint errors MariaDB: InnoDB foreign key constraint errors 2015-08-07 4 Comments Written by Jan Lindstrom Introduction A foreign key is a field (or collection of fields) in one table that uniquely identifies a row of another table. The table containing the foreign key is called the child table, and the table containing the candidate key is called the referenced or parent table. The purpose of the foreign key is to identify a particular row of the referenced table. Therefore, it is required that the foreign key is equal to the candidate key in some row of the primary table, or else have no value (the NULL value). This is called a referential integrity constraint between the two tables. Because violations of these constraints can be the source of many database problems, most database management systems provide mechanisms to ensure that every non-null foreign key corresponds to a row of the referenced table. Consider following simple example: create table parent ( id int not null primary key, name char(80) ) engine=innodb; create table child ( id int not null, name char(80), parent_id int, foreign key(parent_id) references parent(id) ) engine=innodb; As far as I know, the following storage engines for MariaDB and/or MySQL support foreign keys: InnoDB (both innodb_plugin and XtraDB) PBXT (https://mariadb.com/kb/en/mariadb/about-pbxt/) SolidDB for MySQL (http://sourceforge.net/projects/soliddb/) ScaleDB (https://mariadb.com/kb/en/mariadb/scaledb/ and http://scaledb.com/pdfs/Tec