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SQL Sum

Hi Experts,

I am looking to sum a total on an order however...  ive no idea how to pull it all together...

I have tried a nested query but it fails on me, not really don't nested queries before so struggling with it... however..

to get the list of results of an order back the SQL works, however... when adding the sum function it fails.

the SQL is

select 
o.OrderNumber, o.WorkOrderNumber, 
s.SupplierName, 
o.SupplierOrderNumber, o.OrderDate, o.DueDeliveryDate,
oi.item, oi.qty,oi.PriceatOrder, oi.itemtotalcost, 
oi.received
from SupplierOrders.Orders o
left join SupplierOrders.Suppliers s on s.SupplierID = o.SupplierID 
left join SupplierOrders.Order_Item oi on oi.OrderNumber = o.OrderNumber--
where 

o.OrderNumber = 27

select sum(oi.itemtotalcost) as OrderTotal 
from SupplierOrders.Orders o
left join SupplierOrders.Suppliers s on s.SupplierID = o.SupplierID 
left join SupplierOrders.Order_Item oi on oi.OrderNumber = o.OrderNumber--
where 
o.OrderNumber = 27

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0
SimonPrice33
Asked:
SimonPrice33
1 Solution
 
Jim HornMicrosoft SQL Server Developer, Architect, and AuthorCommented:
Here's an article on SQL Server GROUP BY Solutions, where point #5 'Aggregate AND values from a single row that make up the aggregate:  Subquery' is what you're after.

Since it's a subquery, you were on the right path, and what you needed to pull this off was to include OrderNumber in your subquery, so it can be joined to the main query.

Air code <I do my own stunts too>
SELECT
   o.OrderNumber, o.WorkOrderNumber, 
   s.SupplierName, 
   o.SupplierOrderNumber, o.OrderDate, o.DueDeliveryDate,
   oi.item, oi.qty,oi.PriceatOrder, oi.itemtotalcost, 
   oi.received, 
   tot.OrderTotal
FROM SupplierOrders.Orders o
   LEFT JOIN SupplierOrders.Suppliers s on s.SupplierID = o.SupplierID 
   LEFT JOIN SupplierOrders.Order_Item oi on oi.OrderNumber = o.OrderNumber--
   JOIN (
      SELECT o.OrderNumber, sum(oi.itemtotalcost) as OrderTotal 
      FROM SupplierOrders.Orders o
         LEFT JOIN SupplierOrders.Suppliers s on s.SupplierID = o.SupplierID 
         LEFT JOIN SupplierOrders.Order_Item oi on oi.OrderNumber = o.OrderNumber
      WHERE o.OrderNumber = 27
      GROUP BY o.OrderNumber) tot ON o.OrderNumber = tot.OrderNumber
WHERE o.OrderNumber = 27

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0
 
SimonPrice33Author Commented:
thank you
0

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