oops... yeah, I knew that, but my fingers got ahead of my brain :-) Sorry.
Chris Hamilton <ToneCzar_at_erols.com> wrote in message
news:KOjvN+ZTpwmuZNwz8I=+gworeSFT_at_4ax.com...
> On Mon, 27 Sep 1999 21:37:28 GMT, "Kevin P. Fleming"
> <kfleming_at_access-laserpress.com> wrote:
>
> >You need to create your sequences, then using BEFORE INSERT triggers on
each
> >table to populate the primary key columns. The triggers are very simple:
> >
> >1) Table named FOO.
> >2) Sequence named FOO_SEQUENCE.
> >
> >CREATE TRIGGER FOO_INSERT
> >BEFORE INSERT ON TABLE FOO
> >BEGIN
> > :new.keycolumn := FOO_SEQUENCE.NEXTVAL;
> >END FOO_INSERT;
>
> Yes, the idea is correct but the code won't work - you can't reference
> a sequence in that manner. It has to be referenced via a select or in
> the insert clause of a statement.
>
> Do this instead:
>
> create or replace trigger foo_insert
> before insert on foo
> for each row
>
> begin
>
> select foo_sequence.nextval
> into :new.keycolumn
> from dual;
>
> end;
>
>
> >
> ><cspeer_at_my-deja.com> wrote in message news:7somf8$tfk$1_at_nnrp1.deja.com...
> >> Hello everyone,
> >>
> >> We purchased a software program that ties into an Oracle database.
> >> We noticed that there are no primary/unique keys on the tables. We are
> >> adding an auto-incrementing field... And herein the problem lies:
> >>
> >> In order to do an insert with an auto-incrementing field, you
> >> would normally create a sequence and then reference it in your INSERT
> >> INTO clause. However, we do not have that option since we cannot
> >> rewrite the code of the software that creates the statement. (We have
> >> dutifully cursed them and they are working on fixing it.)
> >>
> >> What alternatives do we have to do auto-incrementation. I heard
> >> from the software company, that you can create a field-type that
> >> increments in Oracle, but a) I don't belive it and b) I have not found
> >> any reference to it anywhere in documentation.
> >>
> >> So is there a field type in Oracle (even non-standard) that I can
> >> use to auto-increment?
> >>
> >> I am beginning to think that I will have to write a Trigger/Stored
> >> Procedure that will accomplish this. (ie, on insert, update the auto-
> >> incrementing field with max+1).
> >>
> >> References to articles would greatly help (especially if there is
> >> a reference on writing the trigger.)
> >>
> >> Thank you!
> >>
> >> CW Speer
> >> Oracle DBA (Newbie!)
> >>
> >>
> >> Sent via Deja.com http://www.deja.com/
> >> Before you buy.
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Christopher Hamilton
> Oracle DBA -- Sandbox.com
> chamilton_at_sandbox-inc.com
> http://www.sandbox.com/
Received on Mon Sep 27 1999 - 19:17:38 CDT
