Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I have an existing InnoDB table which already has foreign keys pointing to different tables.
But when I try to create a foreign key pointing to the Primary index, I get an error (check data type).
The table is User with User_Id as the Primary.
I want a foreign key Manager_ID which is a FK to User_Id.
Both of INT Both of Length 10 Unsigned…
But I still get a data check error…?
Make sure that Manager_ID is not set to
NOT NULL.You have to allow nulls on that field, as the top-most person in the company will have no manager.
I found a post over on the MySQL boards that might help.