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rolling group by

From: dsliwa <dave_at_classmates.com>
Date: Wed, 20 Sep 2000 15:58:15 -0700
Message-Id: <10625.117515@fatcity.com> 





        I have a table of data with a single row for each day.  I would like to 
get a rolling 30-day stddev for a particular column.  That is, a stddev for 
the 30 days prior to each day.  The sql will return a 30 days of data.  Is 
this possible to do in single select statement?  Any help is greatly 
appreciated.  Thanks.




Dave 
Received on Wed Sep 20 2000 - 17:58:15 CDT












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