Adding Records at Start
Cindy Brown
cindy at kowhaiprogramming.com
Thu Jan 8 21:30:38 CST 2004
Hi Ruslan
I see your point.
>>
> Not agree.
>
> Look, in your example the DIFFENRENT students have the same last name.
> Students, are DIFFERENT real world objects.
> So here there is NO duplication of data.
>
> But If you will do table PERson/Phones as
>
> Ruslan Zasukhin 1111
> Ruslan Zasukhin 2222
> Ruslan Zasukhin 3333
> Ruslan Zasukhin 4444
>
> You get duplicated because you repeat data of the same real world object in
> few records. This is bad.
>
> It is bad for example, because IF I need change one letter Ruslan -> Rulan
> It is very hard do this.
Cindy
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