UPDATE Sales
SET Sales.price = P.price
FROM Sales
CROSS APPLY (
SELECT TOP (1) price
FROM Price
WHERE Sales.itemId = Price.itemId AND
Sales.date BETWEEN Price.validFrom and Price.ValidTo
ORDER BY Price.validFrom DESC
) AS P
SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".