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Old 02-28-2008, 05:12 AM
=?iso-8859-1?q?Leandro_Guimar=E3es?= Faria Corcete DUTRA
 
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Default Re: Optimize question

On Wed, 08 Nov 2006 15:38:27 -0500, Francis wrote:

> If I do a select to get the log for this date 2006-01-01 :
> Select * from mytable where mydate => '2006-01-01' and mydate <=
> '2006-01-01'.
>
> Do you think is more faster to do on table with have only one date or is
> the same think if I do it on table whit all day ?


That is what indexes are for.


> And last question, if I do a group by, I think the group by is
> faster on column as type INT Vs Varchar ?


Not necessarily so.

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