Re: foundations of relational theory? - some references for the truly starving

From: Anthony W. Youngman <thewolery_at_nospam.demon.co.uk>
Date: Thu, 30 Oct 2003 00:30:49 +0000
Message-ID: <CXzD8EH5uFo$EwUH_at_thewolery.demon.co.uk>


In article <bnibhg$11vvi4$1_at_ID-152540.news.uni-berlin.de>, Costin Cozianu <c_cozianu_at_hotmail.com> writes
>> Oh - and you want the stats? On average, to retrieve any one row, chosen
>> at random, you need to read just *1.05* frames either to retrieve the
>> row from its primary key, or to know that that primary key doesn't
>> exist! The size of the file doesn't enter into the equation.
>>
>> Cheers,
>> Wol
>
>
>Anthony,
>
>You've got no clue about how modern DBMSes work. None (not even your Pick
>probably) reads 1.05 frames, 1.05 means 2.

The average family here has 1.8 kids! So if someone can have 1.8 kids, why can't we have 1.05 seeks? (Don't know what the American figure is, probably about 2.5 kids.) Or don't you know what the word *average* means?

Cheers,
Wol

-- 
Anthony W. Youngman - wol at thewolery dot demon dot co dot uk
Witches are curious by definition and inquisitive by nature. She moved in. "Let 
me through. I'm a nosey person.", she said, employing both elbows.
Maskerade : (c) 1995 Terry Pratchett
Received on Thu Oct 30 2003 - 01:30:49 CET

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