Re: Need for primary keys

On 6/1/07, amar kumar padhi <amar.padhi_at_gmail.com> wrote:
>
> Hi Brain,
> - Constraints require Normalization and there are deviations in design
> methodologies. For performance and data accessibility reasons, some
> projects prefer not to normalize above 2F, some go till 3F.
>

Non 3nf will lead to data errors.

For that matter, not going to 4nf will lead to data errors. There are alternatives for reporting.

Materialized views for instance.

-- 
Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist

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