Re: Database design question - Isolated, unrelated tables
Date: Tue, 26 Jun 2007 16:44:22 +0100
Message-ID: <vsc28317m01ne0nuqihu722i48tdord1tf_at_4ax.com>
Tim <tim_rogers01_at_hotmail.com> wrote:
> In general terms it is quite acceptable to have a standalone table
> with no FK relationships instansiated.
> Indeed, in times gone by whole databases were created in this manner
> as the overhead for OLTP with all the index data manipulation behind
> the scences could bring a system to its knees. (PK & FK are backed by
> 'hidden' indexes).
The only thing that will bring a system to its knees faster than having indexes and FKs is *_not_* having indexes and FKs.
They are purely and simply a nightmare.
<auditing>
> I would not recommend the above for busy tables.
And there's a point to auditing tables that are relatively static - normally lookups?
Paul...
> Hope that helps, Tim
-- plinehan __at__ yahoo __dot__ __com__ XP Pro, SP 2, Oracle, 10.2.0.1 (Express Edition) Interbase 6.0.2.0; When asking database related questions, please give other posters some clues, like operating system, version of db being used and DDL. The exact text and/or number of error messages is useful (!= "it didn't work!"). Thanks. Furthermore, as a courtesy to those who spend time analysing and attempting to help, please do not top post.Received on Tue Jun 26 2007 - 17:44:22 CEST