[Year 12 IT Apps] Another Questions: VITTA Practice Exam 2 Question56

[Robert Hind]

A primary key is not repeat not a data type. As you say, a primary key is a 
unique identifier for each record in the database, ie it must have a 
different value for each record.

It may however be any valid (and appropriate) data type, eg text, integer, 
time/date - as you also said!

Robert Hind (Semi-retired)
Ex Traralgon and Ashwood

----- Original Message ----- 
From: <jtabone at aitkencollege.edu.au>
To: <itapps at edulists.com.au>
Sent: Wednesday, September 12, 2007 11:04 AM
Subject: [Year 12 IT Apps] Another Questions: VITTA Practice Exam 2 
Question56


> Sorry guys for doing this piecemeal, but can I please have your
> opinion to the following
>
> The Answer to Question 5 VITTA Exam 2 suggests that a primary key is
> a data type
>
> My understanding of a primary key is that it is a key that is
> designated to a field therfore ensuring that the field holds a unique
> value for each record - within this field however a data type would be
> text,number, date etc
>
> Thanks for your help
>
> Cheers
> Joyce Tabone
> Aitken College
>
>
>
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> IT Applications Mailing List kindly supported by
> http://www.vcaa.vic.edu.auvce/studies/infotech/itapplications3-4.html - 
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