Alfonso Peniche <alfonso@iteso.mx> writes:
> I have the following inheritance relation:
> user
> |
> ----------
> | |
> student employee
> If I insert John into table student, how can I insert him afterwards so
> that he is also an employee (this could happen several days later)?
If a student could also be an employee, then your table layout is
fundamentally wrong.
regards, tom lane
