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Message Posted: Thu, 07 Mar 2013 @ 09:52:13 GMT
<-- Anonymously Posted: Thursday, March 07, 2013 04:36 -->
thank you for your advice.
I looked at the median route initially but I need to create a fixed window of only the past three months (rows).
So, in March I need to look at the median value in January , February, March only.
That is why I used the approach of creating the three month window by using the system calendar view.
I thought there may be a way to request the partition window of just three rows without having to create this further table.
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