I am trying to create stock query to maintain stock of my product, following image shows my table structure and what i have tried.
My Query Result in this image which is not i trying to get:
what i am trying to do is.
(1) How much Quantity of perticular product i have purchased?
(2) How much Quantity of perticular product i have Sold?
(3) How much Quantity of perticular product i have in my hand(in stock)?
what does i doing wrong pelase guid me.
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