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 subtract 2 columns values from two different table

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jonasggg
Starting Member

4 Posts

Posted - 2011-06-05 : 08:38:16
Hello, Please need your help.

I have 3 tables.



* Product_Table (id_product, product_name)

* Sold_Items (id_product, quantity, date_sold)

* Returned_Items (id_product, quantity, date_returned)



how can I query in order to get results like:

id_product / product_name / sum(sold_quantity) / sum(Returned_quantity) / net_amount (sold minus returnet quantity)

1 / Notebook / 50 / 10 / 40



each query sum for sold and returned quantity has to be parametized by different dates. (date_sold, date_returned)



Thanks in advance.

Jon

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2011-06-05 : 09:08:54
[code]
select p.id_product,
p.product_name,
COALESCE(s.sold_qty,0) as sold_qty,
COALESCE(r.ret_qty,0) as ret_qty,
COALESCE(s.sold_qty,0)-COALESCE(r.ret_qty,0) AS net_qty
from product_table p
left join (select id_product,sum(quantity) as sold_qty
from Sold_Items
group by id_product)s
on s.id_product = p.id_product
left join (select id_product,sum(quantity) as ret_qty
from Returned_Items
group by id_product)r
on r.id_product = p.id_product
[/code]

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

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jonasggg
Starting Member

4 Posts

Posted - 2011-06-06 : 16:38:14
thank you so much visakh16!
It worked!
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visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2011-06-12 : 04:48:57
welcome

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SQL Server MVP
http://visakhm.blogspot.com/

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