CREATE TABLE [Production].[ProductCostHistory] (
[ProductID] INT NOT NULL,
[StartDate] DATETIME NOT NULL,
[EndDate] DATETIME NULL,
[StandardCost] MONEY NOT NULL,
[ModifiedDate] DATETIME CONSTRAINT [DF_ProductCostHistory_ModifiedDate] DEFAULT (getdate()) NOT NULL,
CONSTRAINT [PK_ProductCostHistory_ProductID_StartDate] PRIMARY KEY CLUSTERED ([ProductID] ASC, [StartDate] ASC),
CONSTRAINT [CK_ProductCostHistory_EndDate] CHECK ([EndDate]>=[StartDate] OR [EndDate] IS NULL),
CONSTRAINT [CK_ProductCostHistory_StandardCost] CHECK ([StandardCost]>=(0.00)),
CONSTRAINT [FK_ProductCostHistory_Product_ProductID] FOREIGN KEY ([ProductID]) REFERENCES [Production].[Product] ([ProductID])
);
GO
EXECUTE sp_addextendedproperty @name = N'MS_Description', @value = N'Foreign key constraint referencing Product.ProductID.', @level0type = N'SCHEMA', @level0name = N'Production', @level1type = N'TABLE', @level1name = N'ProductCostHistory', @level2type = N'CONSTRAINT', @level2name = N'FK_ProductCostHistory_Product_ProductID';
GO
EXECUTE sp_addextendedproperty @name = N'MS_Description', @value = N'Standard cost of the product.', @level0type = N'SCHEMA', @level0name = N'Production', @level1type = N'TABLE', @level1name = N'ProductCostHistory', @level2type = N'COLUMN', @level2name = N'StandardCost';
GO
EXECUTE sp_addextendedproperty @name = N'MS_Description', @value = N'Product cost start date.', @level0type = N'SCHEMA', @level0name = N'Production', @level1type = N'TABLE', @level1name = N'ProductCostHistory', @level2type = N'COLUMN', @level2name = N'StartDate';
GO
EXECUTE sp_addextendedproperty @name = N'MS_Description', @value = N'Check constraint [StandardCost] >= (0.00)', @level0type = N'SCHEMA', @level0name = N'Production', @level1type = N'TABLE', @level1name = N'ProductCostHistory', @level2type = N'CONSTRAINT', @level2name = N'CK_ProductCostHistory_StandardCost';
GO
EXECUTE sp_addextendedproperty @name = N'MS_Description', @value = N'Changes in the cost of a product over time.', @level0type = N'SCHEMA', @level0name = N'Production', @level1type = N'TABLE', @level1name = N'ProductCostHistory';
GO
EXECUTE sp_addextendedproperty @name = N'MS_Description', @value = N'Primary key (clustered) constraint', @level0type = N'SCHEMA', @level0name = N'Production', @level1type = N'TABLE', @level1name = N'ProductCostHistory', @level2type = N'CONSTRAINT', @level2name = N'PK_ProductCostHistory_ProductID_StartDate';
GO
EXECUTE sp_addextendedproperty @name = N'MS_Description', @value = N'Date and time the record was last updated.', @level0type = N'SCHEMA', @level0name = N'Production', @level1type = N'TABLE', @level1name = N'ProductCostHistory', @level2type = N'COLUMN', @level2name = N'ModifiedDate';
GO
EXECUTE sp_addextendedproperty @name = N'MS_Description', @value = N'Default constraint value of GETDATE()', @level0type = N'SCHEMA', @level0name = N'Production', @level1type = N'TABLE', @level1name = N'ProductCostHistory', @level2type = N'CONSTRAINT', @level2name = N'DF_ProductCostHistory_ModifiedDate';
GO
EXECUTE sp_addextendedproperty @name = N'MS_Description', @value = N'Check constraint [EndDate] >= [StartDate] OR [EndDate] IS NULL', @level0type = N'SCHEMA', @level0name = N'Production', @level1type = N'TABLE', @level1name = N'ProductCostHistory', @level2type = N'CONSTRAINT', @level2name = N'CK_ProductCostHistory_EndDate';
GO
EXECUTE sp_addextendedproperty @name = N'MS_Description', @value = N'Product cost end date.', @level0type = N'SCHEMA', @level0name = N'Production', @level1type = N'TABLE', @level1name = N'ProductCostHistory', @level2type = N'COLUMN', @level2name = N'EndDate';
GO
EXECUTE sp_addextendedproperty @name = N'MS_Description', @value = N'Product identification number. Foreign key to Product.ProductID', @level0type = N'SCHEMA', @level0name = N'Production', @level1type = N'TABLE', @level1name = N'ProductCostHistory', @level2type = N'COLUMN', @level2name = N'ProductID';
GO
