Question

I have customer table which have products and quantity , I need to retrieve those products which sell better in the company.

How would I accomplish this with an SQL query?

Answer 1

Out of the common-assumption of a product/order/sales table schema, the following query is constructed. So please either show us your tables or change the query according to your tables.

This will give you the best product:

SELECT s.ProductID, ProductName, Max(s.Quantity) as MaxSales
FROM Products p, SalesOrder s
WHERE p.ProductID = s.ProductID
GROUP BY s.ProductID;    

This will give you 10 best products:

SELECT TOP 10 s.ProductID, ProductName, s.Quantity
FROM Products p, SalesOrder s
WHERE p.ProductID = s.ProductID
ORDER BY s.Quantity DESC;