Subject Re: [IBO] transaction behavior
Author constantijnw
> It's a serious flaw in design to try to work around concurrency
> in the way you are trying to do it. It doesn't work; and you are
> unpredictable logical corruption. (Logical corruption means bad
data that
> isn't detected by the engine).
> Helen

Hi Helen,

Basically, the design flaw is in the missing UNIQUE CONSTRAINT of the
(supplierid, invoicenumber) pair, isn't it?