Mysql Errno 150 Error 1025
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Error 1025 (hy000) Error On Rename Of (errno 152)
About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting error 1025 outlook mac 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 how to drop foreign key in mysql million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up #1025 - Error on rename of './database/#sql-2e0f_1254ba7' to './database/table' (errno: 150) up vote 59 down vote favorite 13 So I am trying to add a primary key to one of the tables in my database. Right now it
Error Code 1025 Outlook Mac
has a primary key like this: PRIMARY KEY (user_id, round_number) Where user_id is a foreign key. I am trying to change it to this: PRIMARY KEY (user_id, round_number, created_at) I am doing this in phpmyadmin by clicking on the primary key icon in the table structure view. This is the error I get: #1025 - Error on rename of './database/#sql-2e0f_1254ba7' to './database/table' (errno: 150) It is a MySQL database with InnoDB table engine. mysql sql phpmyadmin innodb mysql-error-1025 share|improve this question edited Apr 30 '11 at 17:29 OMG Ponies 199k37360417 asked Nov 2 '10 at 17:55 Richard Knop 23.6k95284462 1 A quick search using Google gives me the idea that this problem is related to constraints. Possible helpful links: dev.mysql.com/doc/refman/5.0/en/innodb-error-codes.html and simplicidade.org/notes/archives/2008/03/mysql_errno_150.html –Lekensteyn Nov 2 '10 at 18:01 add a comment| 6 Answers 6 active oldest votes up vote 104 down vote accepted There is probably another table with a foreign key referencing the primary key you are trying to ch
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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 What does mysql error 1025 (HY000): Error on rename of http://stackoverflow.com/questions/4080611/1025-error-on-rename-of-database-sql-2e0f-1254ba7-to-database-table './foo' (errorno: 150) mean? up vote 123 down vote favorite 47 I tried this in mysql: mysql> alter table region drop column country_id; And got this: ERROR 1025 (HY000): Error on rename of './product/#sql-14ae_81' to './product/region' (errno: 150) Any ideas? Foreign key stuff? mysql mysql-error-1025 share|improve this question edited Dec 5 '09 at 7:00 OMG Ponies 199k37360417 asked Oct 1 '08 at 23:33 Trenton 3,56063238 @skiphoppy http://stackoverflow.com/questions/160233/what-does-mysql-error-1025-hy000-error-on-rename-of-foo-errorno-150-me - Are you trying to give a bounty to an already-given-answer? Is that even allowed? Or is your case different, in which case you should start another thread? –Rick James Jan 9 at 6:35 @RickJames Yes it is. However, skiphoppy should add her comment under the answer she elected, as the bouty message will disappear when the bounty is over. –RandomSeed Jan 11 at 15:25 add a comment| 10 Answers 10 active oldest votes up vote 181 down vote accepted You usually get this error if your tables use the InnoDB engine. In that case you would have to drop the foreign key, and then do the alter table and drop the column. But the tricky part is that you can't drop the foreign key using the column name, but instead you would have to find the name used to index it. To find that, issue the following select: SHOW CREATE TABLE region; This should show you the name of the index, something like this: CONSTRAINT region_ibfk_1 FOREIGN KEY (country_id) REFERENCES country (id) ON DELETE NO ACTION ON UPDATE NO ACTION Now simply issue an: alter table region drop foreign key region_ibfk_1; And finally an: alter table region drop column count
SQL Insertion Learn how web applications with access to your database (e.g. MySQL) may be used to poison, dump, or delete information in your database. MySQL Foreign Keys Learn all about MySQL foreign keys http://www.eliacom.com/mysql-gui-wp-errno-150.php in this white paper. MySQL Foreign Key Errors and Errno: 150 Learn how http://www.xaprb.com/blog/2006/08/22/mysqls-error-1025-explained/ to avoid MySQL foreign key errors, including the notorious Errno:150 in this white paper. MySQL/SQL Data Validation (with PHP) Learn the importance of data validation in web applications when information is accepted from third parties, or even from internal users. MySQL Foreign Key Errors: errno 150, errno 121, and others Diagnosing Errors SHOW ENGINE error 1025 INNODB STATUS is Your New Best Friend: Click for solutionIf you get one of the really helpful errors (sarcasm) like the errno 150 or errno 121, then by simply typing in SHOW ENGINE INNODB STATUS, there is a section called "LATEST FOREIGN KEY ERROR". Under that it will give you a very helpful error message, which typically will tell you right away what is the matter. What's error on rename the catch?You need SUPER privileges to run it, so if you don't have that, you'll just have to test out the following scenarios. Use Eliacom's MySQL GUI tool to catch most errors: Click for solutionYou can either download the MySQL GUI to install on your own server, or you can use our free online demo of the MySQL GUI to do it. You can check out our video on how to create foreign keys and indexes using Eliacom's MySQL GUI tool.. MySQL errno 150 ERROR 1005 (HY000): Can't create table 'table' (errno: 150) ERROR 1025 (HY000): Error on rename of 'table' to 'newtable' (errno: 150) Causes and Solutions for errno 150 Data Types Don't Match: Click for solutionThe types of the columns have to be the same (usually). This is one of the most common reasons for errno 150. For instance, if the type of the child column is VARCHAR(50), the type of the parent column should be exactly VARCHAR(50) (since they're supposed to hold the same data). For numeric types, if one is UNSIGNED, then both have to be UNSIGNED. They should match exactly!. I have run into circumstances where it has let me create a foreign
Hugo. RSS Feed. Baron Schwartz's Blog MySQL's ERROR 1025 explained Tue, Aug 22, 2006 in Databases MySQL issues a cryptic error message, “Error on rename,” when you try to alter a table in such a way that it would break a foreign key constraint: create table test1(a int not null primary key)engine=innodb; create table test2(a int not null, foreign key(a) references test1 (a)) engine=innodb; alter table test2 modify a smallint not null; ERROR 1025 (HY000): Error on rename of './test/#sql-2fa8_1' to './test/test2' (errno: 150) This happens because ALTER TABLE really works by making a copy of the table, then renaming to move the old table out of the way and move the new table into its place. It is certainly one of the less meaningful error messages I’ve seen in MySQL. There’s slightly more information in the output of SHOW ENGINE INNODB STATUS, if you are looking there (of course, if you’re looking there you’re probably already clued in to what’s going on). And innotop can parse that information for you: In case you didn’t understand why the foreign key constraint was failing, the error message innotop parses out is much clearer. It’s because the foreign key columns in the parent and child table have to have the same data type. I was trying to change the child’s column to an incompatible type. I'm Baron Schwartz, the founder and CEO of VividCortex. I am the author of High Performance MySQL and many open-source tools for performance analysis, monitoring, and system administration. I contribute to various database communities such as Oracle, PostgreSQL, Redis and MongoDB. Newer Older Comments