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Mysql Create Error 150

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Error 1005 (hy000)

TABLE TOS.USER (User Char(8), Name Char(10), Type Char(1), Password Char(12), PRIMARY KEY(User)); CREATE TABLE TOS.BILL_HEADER (Bill_No Char(10), CTime DateTime, No_Of INTEGER, Cus_No Char(5), DTime DateTime, PRIMARY KEY(Bill_No)); CREATE TABLE TOS.TOY (Toy_Id Char(10), FullN Char(50), ShortN Char(20), Descrip Char(20), Price DECIMAL, Avail Char(1), Cat Char(1), PRIMARY KEY(Toy_Id)); CREATE TABLE TOS.BILL_ITEM (Bill_No Char(10), BSeq_No INTEGER, Toy_Id Char(10), OTime DateTime, Quan INT, DCondition Char(1), PRIMARY KEY(Bill_No,BSeq_No), FOREIGN KEY(Bill_No) REFERENCES TOS.Bill_Header(Bill_No), FOREIGN KEY(Toy_Id) REFERENCES TOS.TOY(Toy_Id)); Error: 1005 - Can't create table 'TOS.BILL_ITEM' (errno: 150) Any help would be greatly appreciated. mysql foreign-keys mysql-error-1005 share|improve this question asked Nov 23 '13 at 19:06 Confucius 1043310 It does appear to work if I remove the DROP statements.. sqlfiddle.com/#!2/08d1e –Michael Berkowski Nov 23 '13 at 19:10 2 Usually, err 150 is a foreign key error, due to a data type and length mismatch between the column and relation, or a missing index on the primary column. You do have all the correct types and PK indexes defined though. –Michael Berkowski Nov 23 '13 at 19:12 Could you try to remove only one of the foreign keys to narrow the problem? –Oscar Pérez Nov 23 '13 at 19:14 add a comment| 2 Answers 2 active oldest votes up vote 14 down vote acce

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Error 1005 (hy000): Can't Create Table (errno: 150)

Overflow the company Business Learn more about hiring developers or posting ads with us mysql error 1005 can't create table Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community can t create table errno 121 of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up MySQL Creating tables with Foreign Keys giving errno: 150 up vote 78 down vote favorite 38 http://stackoverflow.com/questions/20166573/mysql-foreign-key-cant-create-table-errno-150 I am trying to create a table in MySQL with two foreign keys, which reference the primary keys in 2 other tables, but I am getting an errno: 150 error and it will not create the table. Here is the SQL for all 3 tables: CREATE TABLE role_groups ( `role_group_id` int(11) NOT NULL `AUTO_INCREMENT`, `name` varchar(20), `description` varchar(200), PRIMARY KEY (`role_group_id`) ) ENGINE=InnoDB; CREATE TABLE IF NOT EXISTS `roles` ( `role_id` http://stackoverflow.com/questions/1457305/mysql-creating-tables-with-foreign-keys-giving-errno-150 int(11) NOT NULL AUTO_INCREMENT, `name` varchar(50), `description` varchar(200), PRIMARY KEY (`role_id`) ) ENGINE=InnoDB; create table role_map ( `role_map_id` int not null `auto_increment`, `role_id` int not null, `role_group_id` int not null, primary key(`role_map_id`), foreign key(`role_id`) references roles(`role_id`), foreign key(`role_group_id`) references role_groups(`role_group_id`) ) engine=InnoDB; Any help would be greatly appreciated. mysql foreign-keys errno share|improve this question edited Sep 21 '09 at 23:37 Bill Karwin 283k50395569 asked Sep 21 '09 at 22:55 user176842 1 Could you post the error output and tell us which command (of the three) is causing the error? –dave Sep 21 '09 at 23:08 4 What's with the back-ticks around auto_increment? That's not valid. Auto_increment is a keyword, not an identifier. –Bill Karwin Sep 21 '09 at 23:39 add a comment| 17 Answers 17 active oldest votes up vote 194 down vote I had the same problem with ALTER TABLE ADD FOREIGN KEY. After an hour, I found that these conditions must be satisfied to not get error 150: The two tables must have the same engine i.e. ENGINE=InnoDB. (can be others: ENGINE=MyISAM works too) The two tables must have the same charset. The PK column(s) in the parent table and the FK column(s) must be the same data type. (if the PRIMARY Key in the Parent table i

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 http://www.eliacom.com/mysql-gui-wp-errno-150.php 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 create table 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 t create table 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 c

 

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