>
>
> I am not too serious now, I am just playing (and I remember this
> discussion many times). We can "theoretically" introduce new keyword
> `EXACT`, that can specify so any DML or SELECT can process or returns just
> one row (or with other clause zero rows)
>
> EXACT ONE SELECT id FROM tab WHERE id = 1;
> EXACT ONE UPDATE ...
> EXACT ONE DELETE ...
> EXACT ONE OR NONE SELECT ...
>
or
EXACT NONE SELECT ...
>
>
>
> /Joel
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