Error 1005 Hy000 At
Contents |
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
Error 1005 Hy000 Errno 150
site About Us Learn more about Stack Overflow the company Business Learn error 1005 hy000 errno 121 more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x
Error 1005 Hy000 Can Create Table
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 MySQL mysql error 1005 hy000 “ERROR 1005 (HY000): Can't create table 'foo.#sql-12c_4' (errno: 150)” up vote 38 down vote favorite 5 I was working on creating some tables in database foo, but every time I end up with errno 150 regarding the foreign key. Firstly, here's my code for creating tables: CREATE TABLE Clients ( client_id CHAR(10) NOT NULL , client_name CHAR(50) NOT NULL , provisional_license_num CHAR(50) NOT NULL error 1005 hy000 errno 13 , client_address CHAR(50) NULL , client_city CHAR(50) NULL , client_county CHAR(50) NULL , client_zip CHAR(10) NULL , client_phone INT NULL , client_email CHAR(255) NULL , client_dob DATETIME NULL , test_attempts INT NULL ); CREATE TABLE Applications ( application_id CHAR(10) NOT NULL , office_id INT NOT NULL , client_id CHAR(10) NOT NULL , instructor_id CHAR(10) NOT NULL , car_id CHAR(10) NOT NULL , application_date DATETIME NULL ); CREATE TABLE Instructors ( instructor_id CHAR(10) NOT NULL , office_id INT NOT NULL , instructor_name CHAR(50) NOT NULL , instructor_address CHAR(50) NULL , instructor_city CHAR(50) NULL , instructor_county CHAR(50) NULL , instructor_zip CHAR(10) NULL , instructor_phone INT NULL , instructor_email CHAR(255) NULL , instructor_dob DATETIME NULL , lessons_given INT NULL ); CREATE TABLE Cars ( car_id CHAR(10) NOT NULL , office_id INT NOT NULL , engine_serial_num CHAR(10) NULL , registration_num CHAR(10) NULL , car_make CHAR(50) NULL , car_model CHAR(50) NULL ); CREATE TABLE Offices ( office_id INT NOT NULL , office_address CHAR(50) NULL , office_city CHAR(50) NULL , office_County CHAR(50) NULL , office_zip CHAR(10) NULL , office_phone INT NULL , office_email CHAR(255) NULL ); CREATE TABLE Lessons ( lesson_num INT NOT NULL , cl
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
Error 1005 Hy000 Errno 1
Overflow the company Business Learn more about hiring developers or posting ads with us error 1005 hy000 can t create table Database Administrators Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question and answer site for database
Mysql Error Code 1005 Errno 150
professionals who wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can http://stackoverflow.com/questions/2799021/mysql-error-1005-hy000-cant-create-table-foo-sql-12c-4-errno-150 answer The best answers are voted up and rise to the top Create table shows ERROR 1005(HY000) errno 150 up vote 0 down vote favorite i tried to create tables as per given in my textbook in MySQL server as follows: create table department (dept_name varchar(20), building varchar(15), budget numeric(12,2), primary key (dept_name) ); create table course (course_id varchar(8), title varchar(50), dept_name varchar(20), credits numeric(2,0), primary key (course_id), foreign key (dept_name) references http://dba.stackexchange.com/questions/62114/create-table-shows-error-1005hy000-errno-150 department ); the department table gets created, but an error ERROR 1005 (HY000): Can't create table 'test.course' (errno: 150) is displayed. The queries seem very simple. And i am unable to find any mistake. What can be the possible error that is preventing me to create the table? mysql foreign-key share|improve this question asked Mar 31 '14 at 5:29 Amita 312 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote accepted You are missing column name of parent table to which your child refer, while creating child table, do like below create table department (dept_name varchar(20), building varchar(15), budget numeric(12,2), primary key (dept_name) ); create table course (course_id varchar(8), title varchar(50), dept_name varchar(20), credits numeric(2,0), primary key (course_id), foreign key (dept_name) references department(dept_name) ); share|improve this answer answered Mar 31 '14 at 5:32 Abdul Manaf 4,73563864 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service. Not the answer you're looking for? Browse other questions tagged mysql foreign-key or ask your own qu
figure this one out. It turns out, InnoDB wants an index created on a referenced field. It turns out, the error was http://lightonphiri.org/blog/mysql-errors-error-1005-hy000-at-line-28-cant-create-table-x-errno-150 as a result of a non-indexed referenced field-title_etd in this case. Affected tables are below create table Title (title_etd varchar(255), oai_identifier varchar(255), primary key (oai_identifier) ); create table Subject https://www.troyfawkes.com/solved-mysql-error-1005-cant-create-table-errno-150/ (subject_etd varchar(255), oai_identifier varchar(255), title_etd varchar(255), constraint subject_title_etd foreign key (title_etd) references Title(title_etd), constraint subject_oai_identifier foreign key (oai_identifier) references Title(oai_identifier), primary key (oai_identifier,title_etd,subject_etd) ); MySQL InnoDB status output error 1005 is below. mysql> mysql> SHOW ENGINE INNODB STATUS\G : : RW-excl spins 0, rounds 1098, OS waits 36 Spin rounds per wait: 12.35 mutex, 30.00 RW-shared, 1098.00 RW-excl ------------------------ LATEST FOREIGN KEY ERROR ------------------------ 140110 13:16:42 Error in foreign key constraint of table test_etd_dbp/Subject: foreign key (title_etd) references Title(title_etd), constraint subject_oai_identifier foreign key (oai_identifier) references Title(oai_identifier), primary key error 1005 hy000 (oai_identifier,title_etd,subject_etd) ): Cannot find an index in the referenced table where the referenced columns appear as the first columns, or column types in the table and the referenced table do not match for constraint. Note that the internal storage type of ENUM and SET changed in tables created with >= InnoDB-4.1.12, and such columns in old tables cannot be referenced by such columns in new tables. See http://dev.mysql.com/doc/refman/5.5/en/innodb-foreign-key-constraints.html for correct foreign key definition. ------------ TRANSACTIONS ------------ Trx id counter 1321 : : 1 row in set (0.04 sec) mysql> I had to create an index on Title.title_etd to resolve this. mysql> ALTER TABLE Title ADD INDEX idx_title_etd (title_etd); Query OK, 0 rows affected (0.34 sec) Records: 0 Duplicates: 0 Warnings: 0 mysql> Related Categories: Technical Tags: InnoDB, MySQL Search for: Archive General (17) Research (21) Teaching (1) Technical (36) Zambia (6) Popular Posts Subscription Leave Blank:Do Not Change:Your email: Tweet Stream RT @CILT_UCT: "Scholarly research from countries in Africa does not feature globally for three primary reasons" https://t.co/DJeuBIeqUA #African #research, Sep 30http
Communication Skills Training Interpersonal Skills Training Blog About Blog Troy Fawkes / Archives / Solved: MySQL ERROR 1005: Can't create table (errno: 150) (Foreign Key) Nov 27 Solved: MySQL ERROR 1005: Can't create table (errno: 150) (Foreign Key) November 27, 2011 Troy Fawkes 8 Comments Archives 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 This is another stupid error. It has to do with trying to successfully set foreign keys in MySQL. ERROR 1005: Can't create table (errno: 150) Great, that's fantastic. Here's an example of where this error will occur. CREATE TABLE main(
id INT UNSIGNED NOT NULL AUTO_INCREMENT,
PRIMARY KEY(id)
);
CREATE TABLE other(
id INT UNSIGNED NOT NULL AUTO_INCREMENT,
main_id INT NOT NULL,
PRIMARY KEY(id),
FOREIGN KEY(main_id) REFERENCES main(id)
); So I'm trying to make the table "other" reference the table "main" through the foreign key "main_id" and, if you try it, it'll throw an Error 150. Want the solution? The foreign key "main_id" has to have the exact same type as the primary key that it references. 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 that isn't something we have to worry about. To make things incredibly clear, here's the working example. CREATE TABLE main( id INT UNSIGNED NOT NULL AUTO_INCREMENT, PRIMARY KEY(id) ); CREATE TABLE other( id INT UNSIGNED NOT NULL AUTO_INCREMENT, main_id INT UNSIGNED NOT NULL, PRIMARY KEY(id), FOREIGN KEY(main_id) REFERENCES main(id) ); To solve ‘MySQL ERROR 1005: Can't create table (errno: 150)‘ you likely just have to ensure that your foreign key has the exact same type as the primary key. Hope it helps. 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 E-Mail About The Author My name is Troy Boileau but I go by Troy Fawkes. I'm a digital marketer working in Toronto. On top of that, my passions include social skills, networking and dating; subjects that I've been semi-professionally involved with for almost five years. Top LinksGet The Conversation Handbook How To Improve Conversation Skills How to Speak Clearly & Confidently Communication Skills Training Categories Archives Development Romance SEO Social Skills Travel Uncategorized About H