Superclass have only a autonumber.. is it possible?

[Micke__1]

Work with IT for many years, and have lately begun looking into DB and MS
Access. So Im quite a rookie in this area.

Ok,
Got a superclass named table1. That class has only one attribute, an ID
which is an auto number.

Then I have to subclasses called table2 and table3. They have the foreign
key to ID, and a couple of other attributes.

When I add a instance to my table2, I want it to add a new auto number in my
superclass, table1. eg a new instance in table1.Is this possible at all?

It seems that I need to first add to table1, and after that use that id in
table2 or table3, and that is not possible here.

any advice here?

br
Micke

 

[Jeff Boyce]

Since the value in table2 involves a foreign key pointing back to a record
in table1, oh wait, you don't have a record in table1 yet!

Yes, by all means, start the record in table1, then finish table2 details.

--

Regards

Jeff Boyce
Microsoft Access MVP

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Any code or pseudocode included in this post is offered "as is", with no
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[Piet Linden]

FWIW, you might want to read Rebecca Riordan's article on how to do
super/subclassing in Access...

http://www.mvps.org/access/tables/tbl0013.htm