Iam sorry Helen. But I don't get what you mean.
The invoice number here is not automatically generated but rather
copying it from a hard copy of invoice.

What do you mean by top-posting? Sorry Iam not good in english also.

Helen Borrie wrote:

> At 04:00 PM 5/12/2003 +0800, you wrote:
> >Good day.
> >
> >I have another problem. =( .
>
> Lots of problems here. This is NOT a good design.
>
>
> >I have a mater detail setup in my application. I want to perform a check
> >first before saving the records to prevent duplicate entry of invoices.
>
> Why?
>
> Begin by saying where you are getting the invoice number from.
>
> I'm top-posting this so I can keep the rest of your description together
> with this.
>
> Helen
>
>