Re: Operational performance: one big table versus many smaller tables

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От Richard Huxton
Тема Re: Operational performance: one big table versus many smaller tables
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Msg-id 4AE6B960.801@archonet.com
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Ответ на Operational performance: one big table versus many smaller tables  (David Wall <d.wall@computer.org>)
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David Wall wrote:
> If I have various record types that are "one up" records that are
> structurally similar (same columns) and are mostly retrieved one at a
> time by its primary key, is there any performance or operational benefit
> to having millions of such records split across multiple tables (say by
> their application-level purpose) rather than all in one big table?

Probably doesn't matter if you're accessing by pkey (and hence index).
Certainly not when you're talking about a few million rows. Arrange your
tables so they have meaning and only change that if necessary.

--
  Richard Huxton
  Archonet Ltd

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