Primer Ejercicio:
select C.Country,C.City, COUNT(O.OrderID)'Numero de Pedidos'
from Customers C JOIN Orders O ON (C.CustomerID = O.CustomerID)
group by C.Country,C.City
order by [Numero de Pedidos]
Segundo Ejercicio.
SELECT O.ShipAddress, COUNT(O.OrderID)'Cantidad de Ordenes',SUM(OD.Quantity)'Cantidad total'
FROM Orders O JOIN OrderDetails OD ON (O.OrderID = OD.OrderID)
WHERE O.ShipCountry = 'Mexico'
GROUP BY O.ShipAddress
HAVING COUNT(O.OrderID) >=10
ORDER BY 2


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