How control the sequence in forms

Question

hi all,
i have id column in the form which has to generate the sequence number automatically,i have created the sequence in the database and assigned it and is working fine.
But the problem is that either we save the record or not the sequence is generating.so the as soon as we get in to insert mode the number is generated.
i need the sequence to be generated only when i save the record.
can anyone could help out with the situation.
thanks,
sanjeev varma.s.

Answer 1

hi,
i have already tried it out ,but couldn't get the result.
our problem is that i'm are not able to restrict the sequence, if i'm not saving the record.i have done it in when-validate-item of the previous naviagtion item so that the column on which the sequence is generated can be skipped and sequence is generated automatically.
the below is the code we have tried it out.
DECLARE
v_cname VARCHAR2 (50);
v_com_seq NUMBER;
BEGIN
SELECT NAME
INTO v_cname
FROM company
WHERE NAME = :company.NAME;
IF v_cname = :company.NAME THEN
MESSAGE ('Company name already exists Can not be duplicated');
MESSAGE (' ');
END IF;
RAISE form_trigger_failure;
EXCEPTION
WHEN NO_DATA_FOUND THEN
SELECT COMSEQ.NEXTVAL INTO v_com_seq FROM dual;
:company.CID := substr(:company.NAME,1,3)||v_com_seq;
END;
thanks,
sanjeev varma s