On Sun April 2 2006 06:52, + Michelle Jones wrote:
> I'm trying to start up a data base.  Why do I need to have an ID?  I just
> want to enter in addresses, and look them up by name.
>
Hi  Andrew

As you are not subscribed you may not have seen that:
On Mon April 3 2006 10:58, Andi Permadi wrote:
> Hi,
>   I assume the ID is primary key.
>   We need an ID to make sure the one record is different with other. So if
> You will not have more than one same record. For egsample You have 2 friend
> with same name James Cook. One is Your college friend and the other is Your
> working partner. They coincidentally live in the same house with the same
> phone.
>
> To make the difference between both of them, we use ID (we call it primary
> key).Same reason with if You have social security number.  In the old days
> the dbase format permit You to make a database without primary key but now
> it is a must.
>
> But still You can use the name as primary key.
>
> PS: Sorry my english is not so good

Please reply to [email protected] only.


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