This question might be better answered on the database list.

A text file 'might' work if you do nothing but store a login name and
password.  If you are going to store anything else like phone numbers, real
names, employee ids, then a text file is unlikely to work.

To use a text file you are going to need a search algorithm.  I believe
there are several text file management modules in perl that might already do
this.  I haven't used any of them so I can speak about that.

> Behalf Of Michael Cheung
>
>
> Hi,all;
>
> I am coding for a login system, with some common functions like new,
> delete, change, check..., maybe the maximum of user will be 10,000,000.
> Just an assumption.
>
> In such a situation, which is the right way to achieve this?
> use a text file or a real database?
> I don't know how to do, many samples I found use
> text file as their database. But I don't know if it is well enough to
> store 10,000,000 records.
>
> Is there any sample code about this?
>
> Thanks in advance.
>
> Regards;
> Michael
>


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