Parent Child Inert in a single transaction

Question

Hi,
How to insert the parent and child table records in a single transaction.
The Senario is
CREATE TABLE SAMPLE1
COL1 NUMBER PRIMARY KEY,
COL2 NUMBER
CREATE TABLE SAMPLE2
COL_1 number,
COL1 NUMBER ,
CONSTRAINT fk_col1
FOREIGN KEY (COL1)
REFERENCES SAMPLE1(COL1)
CREATE OR REPLACE TRIGGER SAMPLE_TRG
AFTER INSERT ON SAMPLE1
FOR EACH ROW
BEGIN
INSERT INTO SAMPLE2 (COL1,COL_1)
VALUES(:NEW.COL1,125);
END;
INSERT INTO SAMPLE1 (COL1,COL2) VALUES (1,2);
The Insert raises integrity constraint. But the above scenario is valid too..
Thanks in advance,
Ramesh.R
Edited by: Ramesh_R on Nov 8, 2009 8:56 PM

Answer 1

Ramesh_R wrote:
Hi Justin,
Thanks for your reply.
We need this scenario because the child records are inserted automatically in the back end with out the user knowledge. so onlt by using triggers we have to insert the records.
Can you please say the limitations of deferred constraint int his scenario..What "limitations" are you worried about?
If there is a process that is inserting records in a child table that is unaware of the existence of the parent table, that would seem like a bug. Coding around a bug like this rarely works well in the long term. And if it doesn't know about the parent table, will it know to be able to defer the constraint?
Justin