Set Null constraints in Oracle 8.0.5?????
From: Carole Darche <cdarche_at_ispalliance.net>
Date: Thu, 24 Feb 2000 23:02:01 -0500
Message-ID: <38B5FEB9.570444BC_at_ispalliance.net>
[Quoted] Hi all,
Date: Thu, 24 Feb 2000 23:02:01 -0500
Message-ID: <38B5FEB9.570444BC_at_ispalliance.net>
[Quoted] Hi all,
[Quoted] Our D.B.A. is having a very strange problem with foreign keys in Oracle 8.0.5.
The object is to create a set null constraint, so she followed the following procedure
create father and child tables
desc father;
Column Name Null? Type
------------------------------ -------- ----
FATHER_ID NOT NULL NUMBER BIDON VARCHAR2(2) desc child; Column Name Null? Type
------------------------------ -------- ----
CHILD_ID NOT NULL NUMBER FATHER_ID NUMBER TEXT VARCHAR2(2)
alter table child
add constraint fk1_child foreign key (father_id) references father
(father_id);
delete from father where father_id=1;
ORA-02292: integrity constraint (AMSUSER.FK1_CHILD) violated - child
record found
How to work our way arround this, How oracle is handling the set null constraints?????
Please reply to the following email address: cdarche_at_america.net Or belbagri_at_america.net
Thanks for your help Received on Fri Feb 25 2000 - 05:02:01 CET