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Home -> Community -> Usenet -> c.d.o.server -> Re: how expensive are null values?
Your question has no context. Please explain further.
Daniel Morgan
> sample1:
>
> id col1 col2
> ---------------
> 1 v11 v12
>
> versus:
>
> sample2:
>
> id col1 col2
> ---------------
> 1 v11 null
> 1 null v12
>
> there maybe indexes on the tabel, at least in column id
>
> where r the problems in sample2?
Received on Mon Jan 21 2002 - 02:57:20 CST
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