Hi Hamid !
I hope this ud work.
Create or replace trigger cre_PK
before insert on tableA
for each row
begin
if :new.col1 is null then
select seqname.nextval into :new.col1 from dual;
end if;
end;
/
You can not use or insert statement for same table on which u r writing the
trigger .
Tell me if i am wrong ?
Shishir Kumar Mishra
Agni Software (P) Ltd.,
Bangalore-560055, India
Email :[EMAIL PROTECTED]
--
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]>
Sent: Thursday, December 20, 2001 11:25 PM
> List,
>
> I need some help for creating a trigger, here is my question?
>
> I have a table TABLEA(col1,col2,col3) col1 is Primary Key for this table
> and an application insert records into this table, but I want to write a
> trigger on this table to generate primary key with using nexval of a
> sequence I have tried but doesn't work , if any of you have some sample or
> some links I really appreciate,
> This is my trigger:
>
> Create or replace trigger cre_PK
> before insert
> insert into tableA(col1) values(seqname.nextval)
> end
>
> Thanks in Advance
>
>
>
>
>
> Hamid Alavi
> Office 818 737-0526
> Cell 818 402-1987
>
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Author: Shishir
INET: [EMAIL PROTECTED]
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