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If you are dealing with varchar types, the tables must use the same collation. Other Foreign Key Errors You Might Encounter A Foreign Key Constraint Fails: Data Doesn't Match: Click for solutionThe most common but easy error to track (because it actually tells you what Re: ERROR 1005: Can't create table (errno: 150) :: InnoDB 7331 T D 06/25/2009 03:30AM Re: Solved! Share on Facebook Share 0 Share on TwitterTweet 0 Share on Google Plus Share 0 Share on Pinterest Share 0 Share on LinkedIn Share 0 Facebook Twitter Tumblr Pinterest Google+ LinkedIn http://rlegsoftware.com/mysql-error/150-mysql-error.php

In the example, "main_id" in the table "other" has the type INT NOT NULL while "id" in the table "main" has the type "INT UNSIGNED NOT NULL" and also AUTO_INCREMENT, but i mean, there is no database anymore... asked 6 years ago viewed 83414 times active 1 month ago Get the weekly newsletter! Why don't we see faster 7400 series chips? http://stackoverflow.com/questions/825362/mysql-error-150-foreign-keys

Mysql Error 1005

They should match exactly!. I double-checked the foreign key fields to be the same on both tables and I can't find any error. Take for instance the query below: alter table esp_empdata add constraint foreign key (`empClass`) references `esp_empclasses` (` id2`) I went through all the other checks in this paper over and over

but in my case, i have just dropped the whole database, and i still get the error... If you are using Eliacom's MySQL GUI tool, then when you go to create the foreign key, the system will precheck your name, and alert you if the name you chose Check that the name of your foreign key is unique within your database. Mysql Error 1025 If you don't know how to edit tables using our MySQL GUI tool, see the video tutorial on editing tables.

I search online. Mysql Error 121 actually it was the definition of the primary key field. Then copy the sql. But if this isn't used carefully, you can end up with child data that doesn't match to any parent data in your child table.

until today at least :D But we never stop learning, right ;) –jebbie Mar 19 '15 at 15:35 This actually helped me with a script liquibase generated. Mysql Error 150 Rename How do you fix it? Is it correct to say my domestic name is? Unsigned int with int will throw a 150 error no.

Mysql Error 121

This is so helpful. http://www.eliacom.com/mysql-gui-wp-errno-150.php What are the Starfleet regulations on crew relationships or fraternizing? Mysql Error 1005 both tables engine must be InnoDB. Mysql Foreign Key Can anyone point out what I'm not seeing here?

Can't create table '…' (errno: 150)2#1005 - Can't create table 'classorganizer.turma' (errno: 150)4MySQL errno: 150 can't create table2MySQL Workbench - Forward Engineering - Error 1005: Can't create table (errno: 150)0Can't create http://rlegsoftware.com/mysql-error/1251-mysql-error.php share|improve this answer answered Oct 29 '15 at 14:39 Ignacio Hernández 112 add a comment| up vote 0 down vote Perhaps this will help? With this: CREATE TABLE IF NOT EXISTS `testdb`.`table1` ( `id` INT UNSIGNED NOT NULL , `field1` VARCHAR(50) NULL , KEY ix_table1_field1 (field1), PRIMARY KEY (`id`) ) ENGINE = InnoDB; Everything should I haven't found him while staring at this for half an hour. Mysql Errno 150

You have to eliminate them, the easiest way is to "ALTER TABLE table_name DROP FOREIGN KEY fk_column". Any ideas? PK column in parent and FK column must be in same data type and same collation type. http://rlegsoftware.com/mysql-error/145-error-mysql.php i love yOu i lOve you i love yOu!

So in the above I changed user(id) to user(user_id), and all was well in the universe again... Mysql Error 1064 How are the pictures generated? Apparently, this error sometimes allows things like table creation even though the foreign key creation failed.

share|improve this answer answered Sep 8 '15 at 12:00 Ajay Sharma 387416 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google

share|improve this answer answered Oct 31 '10 at 0:29 Vincent Savard 18.3k94259 add a comment| up vote 2 down vote Change the engines of your tables, only innoDB supports foreign keys If so, you need to make sure that NULL is allowed for that column in the child table. DS Cluster - Follow our Sitemap

Troy Fawkes Call Me At 647-575-9889 Home Top Links The Conversation Handbook (eBook) Communication Skills Training Interpersonal Skills Training Blog About Troy Fawkes Mysql Alter Table 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

Column Collations Don't Match:Click for solutionFor character string type columns (CHAR, VARCHAR, etc.), the column collations have to match exactly. Can't create table errno 150 up vote 66 down vote favorite 7 I have to create a db with 2 tables in mysql but the script fails with errno 150 (Foreign I had problems with engine and charset because my Hosting server change settings and my new tables was MyISAM but my old tables are InnoDB. his comment is here share|improve this answer edited Aug 19 '14 at 10:50 Ian Lewis 1,0551118 answered Nov 17 '09 at 14:46 Quassnoi 260k50426480 5 According to the manual it doesn't need to be

This table engine does not support Foreign Key Constraints. To solve this, we need to add a KEY for the The column record_id in the master_table table and then reference in the relative_table table to be used as a foreign_key. Please your help is appreciated. but i can deal with it :) Just add these two lines of SQL around your fucky statement: SET FOREIGN_KEY_CHECKS = 0; # some code that gives you errno: 150 SET

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