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 How to get average amount of a product

Author  Topic 

vandana
Starting Member

29 Posts

Posted - 2013-10-15 : 01:53:35
Hi All,

I am struck up in writing a query !!!!
i have a table with product_name and introduction_date(when the product was first introduced)as columns. now i wana calculate average as below

if item is sold in previous business year(suppose 2011-12) then avg should be avg price in businessyear(2010-11), if it is newly introduced(suppose 2013-14)then avg should be of current year(2013-14).

Note:- business year Apr-march

Thanks in advance

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-10-15 : 03:16:44
[code]
SELECT product_name,AvgPrice
FROM
(
SELECT product_name,
ROW_NUMBER() OVER (PARTITION BY product_name ORDER BY DATEDIFF(yy,0,DATEADD(mm,-3,introduction_date))) AS Seq,
AVG(Price) AS AvgPrice
FROM table
WHERE Introduction_date > = DATEADD(yy,DATEDIFF(yy,0,GETDATE())-2,0)
AND Introduction_date < DATEADD(yy,DATEDIFF(yy,0,GETDATE())+2,0)
GROUP BY product_name,DATEDIFF(yy,0,DATEADD(mm,-3,introduction_date))
)t
WHERE Seq=1
[/code]

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