one primary key column foreign key to 2 other table columns.How to resolve data entry issue.

Posted by Rohit on Stack Overflow See other posts from Stack Overflow or by Rohit
Published on 2009-08-07T07:27:07Z Indexed on 2010/03/09 5:06 UTC
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I have a requirement according to which I have to create a central Login system.We have 2 things Corporate and Brand each represented by tables "Corporate" and "Brand".

When a corporate gets registered,corporateID is given,When a user under that corporate gets registered there is a table corporateuser in which corporateID is a foreign key and CorporateUserID is a primary key.Similarly in the case of a brand.

So we have CorporateUserId and BrandUserID.

Now i have a table called RegisteredUsers in which i want to have corporate as well as brand users.UserID is a primary key in this table which is a foreign key to both corporateuser as well as Branduser.

now when i enter a corporateuser,I do an entry to corporateuser as well as RegisteredUsers.When i enter CorporateUserID in userID for RegisteredUsers.It gives foreign key violation error.

I fully understand this error.How can i achieve this.This requirement is very rigid.Please tell a workaround

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