dbo.ufnGetProductStandardCost

CREATE FUNCTION [dbo].[ufnGetProductStandardCost](@ProductID [int], @OrderDate [datetime])
RETURNS [money]
AS
-- Returns the standard cost for the product on a specific date.
BEGIN
DECLARE @StandardCost money;

SELECT @StandardCost = pch.[StandardCost]
FROM [Production].[Product] p
INNER JOIN [Production].[ProductCostHistory] pch
ON p.[ProductID] = pch.[ProductID]
AND p.[ProductID] = @ProductID
AND @OrderDate BETWEEN pch.[StartDate] AND COALESCE(pch.[EndDate], '12-31-9999'); -- Make sure we get all the prices!

RETURN @StandardCost;
END;

EXEC [sys].[sp_addextendedproperty] N'MS_Description', N'Scalar function returning the standard cost for a given product on a particular order date.', N'SCHEMA', [dbo], N'FUNCTION', [ufnGetProductStandardCost], NULL, NULL;
EXEC [sys].[sp_addextendedproperty] N'MS_Description', N'Input parameter for the scalar function ufnGetProductStandardCost. Enter a valid ProductID from the Production.Product table.', N'SCHEMA', [dbo], N'FUNCTION', [ufnGetProductStandardCost], N'PARAMETER', '@ProductID';
EXEC [sys].[sp_addextendedproperty] N'MS_Description', N'Input parameter for the scalar function ufnGetProductStandardCost. Enter a valid order date.', N'SCHEMA', [dbo], N'FUNCTION', [ufnGetProductStandardCost], N'PARAMETER', '@OrderDate';

Document was prepared on: Thursday, April 05, 2007