Re: WHAT vs HOW vs WHERE
Date: Sat, 29 May 2004 16:58:24 GMT
Message-ID: <40b8bdd4.6757406_at_news-read3.maxwell.syr.edu>
On Sat, 29 May 2004 08:42:21 -0400, "Laconic2" <laconic2_at_comcast.net> wrote:
They are good when they are hidden to users.
> But there are
>plenty of "good things" that will harm you if you don't use them right.
For instance if you expose pointers to users.
>In the RDBMS implementations that used tables and indexes to represent
>relations and navigational aids, there are plenty of pointers.
Hidden to users.
> Indexes
>are full of pointers.
Indexes are obsolete :-)
>On the subject of WHAT vs HOW, I don't even place pointers on that
>spectrum.
Pointers are about HOW. How to transverse access paths.
> Pointers are about WHERE, not about WHAT or HOW. Indexes
>juxtapose WHAT (the index key) with WHERE (the pointer to the row).
Indexes are about HOW.
Regards
Alfredo
Received on Sat May 29 2004 - 18:58:24 CEST