Error 1025 Hy000 Error On Rename Of To Errno 150
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Mysql Error 1025
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Error 1025 (hy000) Error On Rename Of (errno 152)
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 general error: 1025 error on rename of laravel Help with: ERROR 1025 (HY000): Error on rename of … (errno: 150) up vote 35 down vote favorite 7 I am getting this error when I am trying to run an alter table command to drop a column: ERROR 1025 (HY000): Error on rename of .... (errno: 150). If I understand correctly it is a foreign key problem, but I do not have mysql error 1025 errno 150 a clue how to fix it. Would somebody be so kind and tell me how to get it working. The code used for creating table: CREATE TABLE categories( cid INT AUTO_INCREMENT NOT NULL PRIMARY KEY, assets_id INT NOT NULL, cat_name VARCHAR(30) NOT NULL, INDEX(assets_id), FOREIGN KEY (assets_id) REFERENCES asset(aid) ON UPDATE CASCADE ) ENGINE=INNODB DEFAULT CHARSET=utf8; The alter command: ALTER TABLE categories DROP COLUMN assets_id; The table categories is completely blank. So there is no information to set off the CASCADE restrictions. So could you help me what kind of wizardry do I need to delete the column assets_id. Thank you. mysql share|improve this question edited May 10 '11 at 10:50 Manoj 3,42564364 asked May 10 '11 at 10:31 Henkka 3623817 add a comment| 3 Answers 3 active oldest votes up vote 66 down vote accepted Use SHOW CREATE TABLE categories to show the name of constraint. Most probably it will be categories_ibfk_1 Use the name to drop the foreign key first and the column then: ALTER TABLE categories DROP FOREIGN KEY categories_ibfk_1; ALTER TABLE categories DROP COLUMN assets_id; share|improve this answer answered May 10 '11 at 1
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How To Drop Foreign Key In Mysql
takes a minute: Sign up #1025 - Error on rename of './database/#sql-2e0f_1254ba7' to './database/table' (errno: 150) up vote 58 down vote favorite 13 So I am trying to add a primary key to one of the tables in my database. http://stackoverflow.com/questions/5948704/help-with-error-1025-hy000-error-on-rename-of-errno-150 Right now it 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 http://stackoverflow.com/questions/4080611/1025-error-on-rename-of-database-sql-2e0f-1254ba7-to-database-table share|improve this question edited Apr 30 '11 at 17:29 OMG Ponies 198k36356415 asked Nov 2 '10 at 17:55 Richard Knop 23.4k95284462 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 101 down vote accepted There is probably another table with a foreign key referencing the primary key you are trying to change. To find out which table caused the error you can run SHOW ENGINE INNODB STATUS and then look at the LATEST FOREIGN KEY ERROR section. share|improve this answer edited Nov 20 '14 at 11:00 trejder 6,4601365131 answered Nov 2 '10 at 18:50 Ike Walker 33.4k95278 add a comment| up vote 18 down vote For those who are getting to this question via google... this error can also happen if you try to rename a field that is acting as a foreign key. share|improve this answer answered Jun 20 '13 at 13:03 Dave C 262521 add a comment| up vote 18 down vote As was said you need to remove the FKs before. On Mysql do it like this: ALTER TABLE `table_name` DROP FOREIGN KEY `id_name_fk`; ALTER TABLE `table_name` DROP INDEX `id_name_fk`; share|improve this answer edited Sep 28 at 12:31 answered Sep 4 '13 at 21:04 Wellington Lorindo 1,154814 add a comment| up vote 11 down vote T
log in tour help Tour Start 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 http://dba.stackexchange.com/questions/86853/1025-error-on-rename-of-table-errno-150-table-was-deleted-while-tried-to-a developers or posting ads with us Database Administrators Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others http://www.eliacom.com/mysql-gui-wp-errno-150.php 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 to the top #1025 - Error on rename error 1025 of table errno: 150 : Table was deleted while tried to assign foreign key up vote 1 down vote favorite When I tried to assign foreign key to a table named mydb.table1 it was deleted from my database, I could not understand the reason and tried to move on. For this tried to create same table with create SQL but it says #1005 - Can't create table 'mydb.table1' (errno: 150) Now I created same schema table with table name table2, error on rename this was successfully created but as my application code is written for table1, I need to rename this table to table1 again on which gives me following error. #1025 - Error on rename of table errno: 150 Also tried to run alter table query with set foreign_key_checks = 0. But same error. While searching I came accross below SQL, SHOW INNODB ENGINE STATUS; Which displays following message 141223 11:30:10 Error in foreign key constraint of table myahd/table1: there is no index in the table which would contain the columns as the first columns, or the data types in the table do not match the ones in the referenced table or one of the ON ... SET NULL columns is declared NOT NULL. Constraint:, CONSTRAINT "fk_key9" FOREIGN KEY ("updated_by") REFERENCES "users" ("userid") ON DELETE NO ACTION ON UPDATE NO ACTION While there is no such table listed in my database with name table1. Nor any such key is found with fk_key9. May be I can delete this table1's idb or frm file, but unable to locate it. Or may be there is some other solution. Thanks in advance. mysql innodb foreign-key share|improve this question edited Dec 23 '14 at 16:04 RolandoMySQLDBA 107k15138274 asked Dec 23 '14 at 9:57 TechnoPulseLabs 63 Please show the exact command you ran that generated the error. –RolandoMySQLDBA Dec 23 '14 at 15:23 Understanding the InnoDB architecture is important here. Try ma
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 in this white paper. MySQL Foreign Key Errors and Errno: 150 Learn how 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 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 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 key where the child column was a VARCHAR(50) and the parent column was a VARCHAR(200). Interestingly, if I tried to do the opposite for the same tables, reference a child column that was a VARCHAR(200) to a parent column that was a VARCHAR(50), it threw the errno 150 error. This all might depend on the version of MySQL you are using, and really, the data types should match exactly since the same data is being stored in both places. How do you fix it? You need to check the data types for the columns. You can check them by using SHOW COLUMNS, or SHOW