Join the social network of Tech Nerds, increase skill rank, get work, manage projects...
 

  • Not able to add Foreign key on table column

    @monika.nethani
    Recommendations Offline Message

    • 0
    • 1
    • 1
    • 1
    • 0
    • 0
    • 0
    • 0
    • 310
    Comment on it

    Error Code : 1005 Can't create table 'DatabaseName.#sql-9cc_1' (errno: 150) (0 ms taken)

    After searching a lot i have got solution for the above problem while i was adding FK to a column. The error was because of different MySQL engine. There are different MySQL engines and the table i had PK (Primary Key ) was on InnoDB Engine and the other table on which i was putting FK (Foreign Key)constraint was on MyISAM Engine.

    Change MySQL Engine using following Command

    ALTER TABLE blob_data ENGINE=InnoDB;

    Now Add Constraint Foring Key as:

    ALTER TABLE users_role_map
ADD CONSTRAINT FK_users_role_map1
FOREIGN KEY (email) REFERENCES usert(email)
ON UPDATE CASCADE
ON DELETE CASCADE

    If still not able to solve the issue,follow the link below : Read the link data you may find the solution.

    stackoverflow.com

    mysql
    Comment on it

 0 Comment(s)

Sign In
Forgot Password?
                           OR                           
Create an account !!
                           OR                           
Register

Sign up using

                           OR                           
Forgot Password
Fill out the form below and instructions to reset your password will be emailed to you:
Reset Password
Fill out the form below and reset your password: