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Home -> Community -> Mailing Lists -> Oracle-L -> Re: When stats trash your performance
On 07/12/05, Allen, Brandon <Brandon.Allen_at_oneneck.com> wrote:
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> A problem I've run into before is people running the old ANALYZE statements without specifying a sample size. This will default to a sample size of only 1064 rows (regardless of tables size)!
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That could be it, thanks. Most of the core tables are pretty large
(in the hundreds of thousands of rows) so 1064 rows would be a tiny
sample, less than 1%.
I'll try to get them to let me reanalyze the tables with a decent sample size, 5 or 10%.
Stephen
-- It's better to ask a silly question than to make a silly assumption. http://stephensorablog.blogspot.com/ -- http://www.freelists.org/webpage/oracle-lReceived on Wed Dec 07 2005 - 16:03:54 CST
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