Question

I am trying to create a query that will allow me to split a single figure over multiple rows.

For example, purchase order x may have 15 items allocated to it. Shipping cost is, say, 9.95. How can I calculate 1/15th of 9.95 and then update the cost price of the stock with 1/15th of the shipping cost?

Therefore the cost price of the item would increase from 4.50 to 5.16 (4.50 + 0.66).

Answer 1

I have created a product table and updated the shipping price of items.
Hope that’s what you are looking for.

INSERT INTO [TravelAgentDB].[dbo].[Product]
           ([ID]
           ,[Name]
           ,[Price]
           ,[shippingPrice])
     VALUES
          (1,'Nexus 7' , 250 , 20),
          (2,'Nexus 7 case' , 50 , 20),
          (3,'Nexus 7 headphone' , 20 , 20)
GO


select * from product
Declare @itemsCount int
Select @itemsCount = count(*) From product where id in (1,2,3)
Declare @totalShippingPrice Decimal(18,2) = 9.95
Declare @shippingPriceperItem Decimal(18,2) = @totalShippingPrice / @itemsCount

Update Product 
set [shippingPrice] = @shippingPriceperItem
Where id in (1,2,3)
select * from product