Using a trigger to set default values

Hi
Does anyone know of a way to set a default value of a column in Oracle trigger code? I am trying to write an on Update trigger to set the default value of a column in a relationship when the parent is updated.
Thanks
Mike

Solution :
Suppose you have 2 tables, Emp and Dept,
In this case Dept is parent and emp
is child.
So if you update parent (change deptno
from 20 to 21 , then you want the same
to be reflected in emp table i-e all the
record in emp table having the deptno as 20
now should have 21.
Create trigger upd_emp
after update on dept
begin
update emp
set deptno = :new.deptno
where deptno = :old.deptno;
end;
Hope this helps
Naresh
<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by Mike D ([email protected]):
Hi
Does anyone know of a way to set a default value of a column in Oracle trigger code? I am trying to write an on Update trigger to set the default value of a column in a relationship when the parent is updated.
Thanks
Mike<HR></BLOCKQUOTE>
null

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