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Re: good value for optimizer_index_cost_adj

From: Greg Moore <sqlgreg_at_pacbell.net>
Date: Wed, 24 Apr 2002 14:23:32 -0800
Message-ID: <F001.0044E90C.20020424142332@fatcity.com>

> "db file scattered read" (associated with FULL

> table scans) and "db file sequential
> read" (associated with indexed scans)

But see, Tuning 101, p. 35, where a "db file sequential read" is investigated and the waits are found to be reads from a *table*.

And other examples elsewhere, where "db file scattered read" is found to be associated with reads from an index.

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Author: Greg Moore
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Received on Wed Apr 24 2002 - 17:23:32 CDT

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