"Morten Gulbrandsen" <[EMAIL PROTECTED]> wrote:
> 

[skip]

> ALTER TABLE EMPLOYEE       #  here is the buggy code
> ADD FOREIGN KEY (DNO)       REFERENCES DEPARTMENT(DNUMBER)
> ON DELETE SET DEFAULT  
> ON UPDATE CASCADE;      
>        
> ALTER TABLE DEPARTMENT
> ADD FOREIGN KEY (MGRSSN)    REFERENCES EMPLOYEE(SSN) 
> ON DELETE SET DEFAULT  
> ON UPDATE CASCADE ;
>        
> 
> Please tell me what could be wrong,

ON DELETE SET DEFAULT is not supported. That is why you can't create foreign key 
constraints.


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