|
Let me explain it to you with code
CREATE OR *REPLACE* TABLE rob.doug
(
Order_number *INTEGER* NOT NULL
generated always as identity
constraint Doug_table_primary_key PRIMARY KEY,
customer_name *VARCHAR*(*100*) ALLOCATE(*20*)
);
create table rob.doug_orderline
(
order_number *integer* not null
constraint Doug_header references rob.doug on delete restrict on
update restrict,
order_line *integer* not null
);
*insert* into rob.doug (customer_name) values('Bubba');
*-- What was the order number just created?*values *identity_val_local*();
*insert* into rob.doug_orderline (order_number, order_line) values (
*identity_val_local*(), *1*);
select * from rob.doug;
select * from rob.doug_orderline;
*-- alternative to identity_val_local()*select order_number
*-- into :NewestOrderNumber* from final table ( *insert* into
rob.doug (customer_name) values('Jim Bob')
);
On Tue, Feb 11, 2025 at 9:25 AM DEnglander--- via MIDRANGE-L <
midrange-l@xxxxxxxxxxxxxxxxxx> wrote:
Thank you.
That is what I thought.
The reason I asked is this: I have a table that I would like to have
function as the Parent. I want to possibly have other tables have
referential integrity with it. If I have an Identity number as the key
[as
opposed to a Vendor Number for example], then how would I set something
like: A Child table's Vendor Number column must have a value that exists
in the Parent's Vendor Number column. Unless I'm missing something, it's
not as easy using Identity columns only, since you first have to get the
Identity column of the Vendor whose associated row you want to write in
the Child table. Sounds like extra steps to me, but maybe it's worth it?
Thanks again,
Doug
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