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Navicat And Error 150

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 caused by failure on creating Foreign Keys. There can't create table (errno 150) mysql are some possible cases that might cause failure on creating Foreign Keys on MySQL database. These

Errno 150 Mysql Foreign Key

errors are related to MySQL itself. Example cases: If the two fields (Field name and the Foreign Field name) are using incompatible field mysql can't create table errno 150 foreign key type. If you use "On Delete Set Null" but the field doesn't allow null. To declare foreign keys in MySQL, there are few points which user should bear in mind: Both tables must be InnoDB type. In the referenced error missing index on columns phpmyadmin 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 fields must have the compatible field type. The size and the sign of integer types has to be the same. The length of

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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 child tables. For more details on Foreign Key Constraints, please visit - http://download.oracle.com/docs/cd/B14117_01/appdev.101/b10795/adfns_co.htm#1006976 SQLite To declare foreign keys in SQLite, there are few points which user should bear in mind: The parent and child keys must have the same cardinality For more details on Foreign Key Constrai

here for a quick overview of the site Help Center Detailed answers to any questions you might have error code: 1005. can't create table (errno: 150) Meta Discuss the workings and policies of this site About Us mysql error 1005 can't create table Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with

Error 1005 Hy000 Can T Create Table Errno 150

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 http://wiki.navicat.com/wiki/index.php/Why_I_cannot_successfully_create_the_foreign_keys%3F like you, helping each other. Join them; it only takes a minute: Sign up MySQL Foreign Key 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). http://stackoverflow.com/questions/12751890/mysql-foreign-key-error-1005-errno-150-table-engine-fields-types-lengths-and 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 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, FOREIG

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 http://stackoverflow.com/questions/10483888/error-150-generated-by-an-sql-script 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 http://forums.devarticles.com/mysql-development-50/mysql-foreign-key-problem-errno-150t-7704.html like you, helping each other. Join them; it only takes a minute: Sign up Error (150) Generated By An SQL Script? up vote 0 down vote favorite I am trying to create a table on MySQL using an create table SQL script and the MySQL database keeps on giving me error 150. I've tried the following code in both Navicat and MySQL Workbench and both give an 150 error. It appears that this is a foreign key problem but i cant actually see what the problem with my code is and was wondering if more expereinced DB users would have any inkling to the problem? SET FOREIGN_KEY_CHECKS=0; CREATE TABLE `network_invites` ( `invite_ID` int(11) NOT NULL t create table AUTO_INCREMENT, `invite_From` int(11) NOT NULL, `invite_Network` int(11) NOT NULL, `invite_NetCreator` int(11) NOT NULL, `invite_Message` varchar(256) NOT NULL, `invite_Date` date DEFAULT NULL, PRIMARY KEY (`invite_ID`), KEY `invite_From` (`invite_From`), KEY `invite_Network` (`invite_Network`), KEY `invite_NetCreator` (`invite_NetCreator`), CONSTRAINT `network_invites_ibfk_1` FOREIGN KEY (`invite_From`) REFERENCES `users` (`user_ID`) ON DELETE CASCADE ON UPDATE CASCADE, CONSTRAINT `network_invites_ibfk_2` FOREIGN KEY (`invite_Network`) REFERENCES `networks` (`network_ID`) ON DELETE CASCADE ON UPDATE CASCADE, CONSTRAINT `network_invites_ibfk_3` FOREIGN KEY (`invite_NetCreator`) REFERENCES `networks` (`network_Creator`) ON DELETE CASCADE ON UPDATE CASCADE )ENGINE=InnoDB AUTO_INCREMENT=21 DEFAULT CHARSET=latin1; I cant see what the FK problem is, those fields do exist on the DB and they are of the same datatype. Thanks for any help. mysql sql database share|improve this question asked May 7 '12 at 14:30 Pike Man 95211 Are they all int(11) precisely? –raina77ow May 7 '12 at 14:36 The 3 FKs must be exactly the same as in the related table, that is int(11) NOT NULL. If those definitions differ in the related tables, you'll get the 150 err. –Michael Berkowski May 7 '12 at 14:40 Michael for testing I created dummy tables with exactly the same name/type , and then tried creating table network_invites , however still getting 150 error –Satya May 7 '12 at 14:45 add a comment| 4 Answers 4 active oldest votes up vote 0 down vote I think

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Dev Articles Community Forums Sponsor: #1 April 8th, 2004, 07:36 PM crudesys Registered User Join Date: Mar 2004 Location: California Posts: 25 Time spent in forums: < 1 sec Reputation Power: 0 MySQL Foreign Key Problem (errno: 150) Hi, i have a problem with creating a foreign key in tblForumMessage. here's how i created the tables: CREATE TABLE tblMember ( fldMemberID VARCHAR(15) UNIQUE NOT NULL DEFAULT '', ........ more fields ...... PRIMARY KEY (fldMemberID), ........ indices here ...... ) TYPE=INNODB; CREATE TABLE tblForumTitle ( fldForumID SMALLINT(5) UNIQUE NOT NULL AUTO_INCREMENT, ........ more fields ...... PRIMARY KEY (fldForumID), INDEX indByMemberID (fldByMemberID), FOREIGN KEY (fldByMemberID) REFERENCES tblMember(fldMemberID) ON DELETE CASCADE ) TYPE=INNODB; CREATE TABLE tblForumMessage ( fldMessage TEXT NOT NULL, fldMemberID VARCHAR(15) NOT NULL DEFAULT '', fldForumID SMALLINT(5) UNSIGNED NOT NULL, fldPostDate DATETIME NOT NULL DEFAULT '0000-00-00 00:00:00', INDEX indPostDate (fldPostDate), INDEX indForumMbrID (fldMemberID), INDEX indForumMsgID (fldForumID), FOREIGN KEY (fldMemberID) REFERENCES tblMember(fldMemberID) ON DELETE CASCADE, FOREIGN KEY (fldForumID) REFERENCES tblForumTitle(fldForumID) ON DELETE CASCADE ON UPDATE CASCADE ) TYPE=INNODB; the error i get is "cant create tblForumMessage.frm (errno:150)" which says there's a problem with my foreign key definition. if i take out the last foreign key in tblForumMessage, it works. CREATE TABLE tblForumMessage ( fldMessage TEXT NOT NULL, fldMemberID VARCHAR(15) NOT NULL DEFAULT '', fldForumID SMALLINT(5) UNSIGNED NOT NULL, fldPostDate DATETIME NOT NULL DEFAULT '0000-00-00 00:00:00', INDEX indPostDate (fldPostDate), INDEX indForumMbrID (fldMemberID), INDEX indForumMsgID (fldForumID), FOREIGN KEY (fldMemberID) REFERENCES tblMember(fldMemberID) ON DELETE CASCADE ) TYPE=INNODB; after this worked, i tried to alter the table to add the foreign key ALTER TABLE tblForumMessage ADD FOREIGN KEY (fldForumID) REFERENCES tblForumTitle(fldForumID) but it still gives me the

 

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