Question

Sorry for the messy name of the question, this is my first SQL one.

Does anyone know how to get the OrderID of an Order where the max quantity of a product was sold?

This is my code by far:

SELECT Products.ProductName, MAX([Order Details].Quantity), MAX(OrderID)
FROM Products 
INNER JOIN [Order Details] ON Products.ProductID = [Order Details].ProductID
GROUP BY Products.ProductName

When I say MAX(OrderID) I get the Highest ID where the product was sold, not the actual ID where the Highest quantity of the product was sold.

This is my first question about SQL, Sorry for any lack of information, just tell me what is needed and I’ll add it. Thanks in advance!

EDIT: I’m using SQL Server 2008

Answer 1

SELECT Products.ProductName, [Order Details].OrderID, [Order Details].Qty 
FROM Products 
INNER JOIN [Order Details] ON Products.ProductID = [Order Details].ProductID 
WHERE [Order Details].Quantity = (SELECT MAX(p.Quantity) FROM [Order Details] p WHERE p.ProductID = Products.ProductID)

Note: this will give you multiple results for a single product, if you have multiple orders with max quantity ordered.