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Posted by Flaming Corncob on 08/18/06 16:31
In article <4km59fFcpnbrU1@individual.net>,
"J.O. Aho" <user@example.net> wrote:
> Flaming Corncob wrote:
> > Ok, I just don't understand it.. what are the practical uses of indexes,
> > AUTO_INCREMENT etc.. how are they supposed to work?
>
> The sql server will take care of the increment of the value, without you need
> first check up whats the highest value, then add one to it and then insert
> the
> new data to the table. This can lead to that more than one will try to insert
> data with the same value, which leads to problems.
> With the auto increment, you don't need to insert the value when you insert
> data into your table, it will automatically be inserted and adjusted, and no
> risk for two to get the same value.
>
> This is useful when you want to give unique id-numbers for all rows in a
> table.
>
>
>
> //Aho
Sounds like what I already read.. just can't picture the practical use.
Maybe because it's not what I'm looking for?
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