Navicat And Error 150
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Premium Apply Navicat Version No.: All Contents 1 MySQL & MariaDB 2 PostgreSQL 3 Oracle 4 SQLite MySQL & MariaDB If you receive MySQL Error likes 1005: Can't create table '.\mydb\#sql-44c_1c.frm'(errno: 150), it is can't create table (errno 150) mysql caused by failure on creating Foreign Keys. There are some possible cases that might
Errno 150 Mysql Foreign Key
cause failure on creating Foreign Keys on MySQL database. These errors are related to MySQL itself. Example cases: If the two mysql can't create table errno 150 foreign key fields (Field name and the Foreign Field name) are using incompatible field type. If you use "On Delete Set Null" but the field doesn't allow null. To declare foreign keys in MySQL, there are few error missing index on columns phpmyadmin points which user should bear in mind: Both tables must be InnoDB type. In the referenced table, there must be an index where the referenced columns are listed as the first columns in the same order. Index prefixes on foreign key columns are not supported. InnoDB needs indexes on foreign keys and referenced keys so that foreign key checks can be fast and not require a table scan. The two key
Navicat Foreign Key Tutorial
fields must have the compatible field type. The size and the sign of integer types has to be the same. The length of string types need not be the same. The foreign key name must be unique within the database If you specify a SET NULL action, make sure that you have not declared the columns in the child table as NOT NULL. For more details on Foreign Key Constraints, please visit - http://dev.mysql.com/doc/refman/5.1/en/innodb-foreign-key-constraints.html PostgreSQL If you recevie PostgreSQL Error likes ERROR: there is no unique constraint matching given keys for referenced table "xxxx", it is caused by failure on creating Foreign Keys. To declare foreign keys in PGSQL, there are few points which user should bear in mind: A FOREIGN KEY constraint must refer to a PRIMARY KEY or UNIQUE constraint. The two key fields must have the compatible data type. Must have REFERENCES privilege on both the referencing and referenced tables. Oracle To declare foreign keys in Oracle, there are few points which user should bear in mind: A FOREIGN KEY constraint must refer to a PRIMARY KEY or UNIQUE constraint. The two key fields must have the compatible data type. Composite foreign keys are limited to 32 columns. Must have privileged access to the parent and
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Error 1005 Hy000 Can T Create Table Errno 150
Join the Stack Overflow Community 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 MySQL Foreign Key http://wiki.navicat.com/wiki/index.php/Why_I_cannot_successfully_create_the_foreign_keys%3F Error 1005 errno 150 (table engine, fields types, lengths and indexations are ok) up vote 0 down vote favorite I know there are a LOT of similar questions about this error (FOREIGN KEY fail at table creation or update). I've already checked : both tables are all InnoDb all fields are indexed (or PKs, so.. indexed), int and length 10 But it still doesn't http://stackoverflow.com/questions/12751890/mysql-foreign-key-error-1005-errno-150-table-engine-fields-types-lengths-and work... Now, I just hope that somewone will have a look on my SQL code and tell me if something is wrong :( -- ---------------------------- -- Table structure for `hotels` -- ---------------------------- DROP TABLE IF EXISTS `hotels`; CREATE TABLE `hotels` ( `id` int(10) NOT NULL AUTO_INCREMENT, -- other fields PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=utf8; -- ---------------------------- -- Table structure for `hotelsearch_query` -- ---------------------------- DROP TABLE IF EXISTS `hotelsearch_query`; CREATE TABLE `hotelsearch_query` ( `id` int(10) NOT NULL, -- other fields PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8; -- ---------------------------- -- Table structure for `hotelsearch_result` -- ---------------------------- DROP TABLE IF EXISTS `hotelsearch_result`; CREATE TABLE `hotelsearch_result` ( `query_id` int(10) unsigned NOT NULL, `hotel_id` int(10) unsigned NOT NULL, -- other fields PRIMARY KEY (`query_id`,`hotel_id`), KEY `IDX_QUERY` (`query_id`), KEY `IDX_HOTEL` (`hotel_id`), FOREIGN KEY (`query_id`) REFERENCES `hotelsearch_query`(`id`) ON DELETE CASCADE ON UPDATE CASCADE, FOREIGN KEY (`hotel_id`) REFERENCES `hotels`(`id`) ON DELETE CASCADE ON UPDATE CASCADE ) ENGINE=InnoDB DEFAULT CHARSET=utf8 ROW_FORMAT=COMPACT; When I remove the 2 lines about foreign keys, everything works well. When i try both, or one by one, I also have the error. Please help me ! mysql foreign-keys share|improve this question asked
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta http://stackoverflow.com/questions/4061293/mysql-cant-create-table-errno-150 Discuss the workings and policies of this site About Us Learn more https://devot-ee.com/add-ons/support/backup-pro/viewthread/5699 about Stack Overflow the company Business Learn more about hiring developers or posting 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 million programmers, just like you, create table helping each other. Join them; it only takes a minute: Sign up MySQL: Can't create table (errno: 150) up vote 122 down vote favorite 19 I am trying to import a .sql file and its failing on creating tables. Here's the query that fails: CREATE TABLE `data` ( `id` int(10) unsigned NOT NULL, `name` varchar(100) NOT NULL, `value` t create table 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 31 '10 at 0:37 OMG Ponies 199k37360417 asked Oct 31 '10 at 0:24 gtilx 75921018 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 16 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 '1
Fieldtypes Modules Plugins Submit an Add-on Extras Articles Buy Store Credit Hooks AcademEE Awards Developers EE Config Variables For a more accurate search, use quotation marks. Add-ons (All) Add-ons (All) Add-ons (EE2) Add-ons (EE3) Everything Articles/News Hooks search Extension, Module ArchivedForum (read-only) mithra62 does not actively monitor this forum (but you can still get help from other EE users). For official support, visit the official support site » Backup Pro ExpressionEngine 2, ExpressionEngine 3 Back to this add-on's main page View Other Add-ons From mithra62 Backup Pro>Thread You must be logged in to post. Mysql Error 150 when restoring DB with stash tables General neekster Posted: 08 May 2012 11:12 PM Okay I posted this initially in another thread, but it's probably better in it's own thread. I think there may actually be a problem here, but not with Backup Pro as such. I’ll wager that the addon in question here is Stash. I ran into the same problem, but the tables are there, they just won’t restore. I know just enough about MySQL to be dangerous, so I can only tell you what I found, but can’t make all that much sense of it. I took two backups of my database, one with Navicat (I’ll try mysqldump later too), and one with Backup Pro. The idea was to compare the two backups to be sure nothing was missing. When I tried to restore the backup pro version of the backup I got the error: Can’tcreatetable‘kvp_backup.exp_stash’(errno:150) This is where my MySQL abilities let me down. exp_stash is a InnoDB table whereas all our other tables are MyISAM. I know the error is related to InnoDB, the actual fix is described here: http://stackoverflow.com/questions/825362/mysql-error-150-foreign-keys I’m sure this is more an issue with how Stash creates the table rather than how Backup Pro dumps it, but thought it would be good to post here anyway as it’s where someones going to come when they get the error. Eric any comments you have would be greatly appreciated, I’ll post similar soon over at the Stash forums and see where we end up. Thanks Nick neekster Posted: 08 May 2012 11:17 PM # 1 Okay a followup on this one. A simple workaround to anyone with this problem is to add this line to the top of your sql dump before you restore: