CREATE TABLE [Sales].[CurrencyRate]
(
[CurrencyRateID] [int] NOT NULL IDENTITY(1, 1),
[CurrencyRateDate] [datetime] NOT NULL,
[FromCurrencyCode] [nchar] (3) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[ToCurrencyCode] [nchar] (3) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[AverageRate] [money] NOT NULL,
[EndOfDayRate] [money] NOT NULL,
[ModifiedDate] [datetime] NOT NULL CONSTRAINT [DF_CurrencyRate_ModifiedDate] DEFAULT (getdate())
) ON [PRIMARY]
GO
ALTER TABLE [Sales].[CurrencyRate] ADD CONSTRAINT [PK_CurrencyRate_CurrencyRateID] PRIMARY KEY CLUSTERED  ([CurrencyRateID]) ON [PRIMARY]
GO
CREATE UNIQUE NONCLUSTERED INDEX [AK_CurrencyRate_CurrencyRateDate_FromCurrencyCode_ToCurrencyCode] ON [Sales].[CurrencyRate] ([CurrencyRateDate], [FromCurrencyCode], [ToCurrencyCode]) ON [PRIMARY]
GO
ALTER TABLE [Sales].[CurrencyRate] ADD CONSTRAINT [FK_CurrencyRate_Currency_FromCurrencyCode] FOREIGN KEY ([FromCurrencyCode]) REFERENCES [Sales].[Currency] ([CurrencyCode])
GO
ALTER TABLE [Sales].[CurrencyRate] ADD CONSTRAINT [FK_CurrencyRate_Currency_ToCurrencyCode] FOREIGN KEY ([ToCurrencyCode]) REFERENCES [Sales].[Currency] ([CurrencyCode])
GO
EXEC sp_addextendedproperty N'MS_Description', N'Currency exchange rates.', 'SCHEMA', N'Sales', 'TABLE', N'CurrencyRate', NULL, NULL
GO
EXEC sp_addextendedproperty N'MS_Description', N'Average exchange rate for the day.', 'SCHEMA', N'Sales', 'TABLE', N'CurrencyRate', 'COLUMN', N'AverageRate'
GO
EXEC sp_addextendedproperty N'MS_Description', N'Date and time the exchange rate was obtained.', 'SCHEMA', N'Sales', 'TABLE', N'CurrencyRate', 'COLUMN', N'CurrencyRateDate'
GO
EXEC sp_addextendedproperty N'MS_Description', N'Primary key for CurrencyRate records.', 'SCHEMA', N'Sales', 'TABLE', N'CurrencyRate', 'COLUMN', N'CurrencyRateID'
GO
EXEC sp_addextendedproperty N'MS_Description', N'Final exchange rate for the day.', 'SCHEMA', N'Sales', 'TABLE', N'CurrencyRate', 'COLUMN', N'EndOfDayRate'
GO
EXEC sp_addextendedproperty N'MS_Description', N'Exchange rate was converted from this currency code.', 'SCHEMA', N'Sales', 'TABLE', N'CurrencyRate', 'COLUMN', N'FromCurrencyCode'
GO
EXEC sp_addextendedproperty N'MS_Description', N'Date and time the record was last updated.', 'SCHEMA', N'Sales', 'TABLE', N'CurrencyRate', 'COLUMN', N'ModifiedDate'
GO
EXEC sp_addextendedproperty N'MS_Description', N'Exchange rate was converted to this currency code.', 'SCHEMA', N'Sales', 'TABLE', N'CurrencyRate', 'COLUMN', N'ToCurrencyCode'
GO
EXEC sp_addextendedproperty N'MS_Description', N'Default constraint value of GETDATE()', 'SCHEMA', N'Sales', 'TABLE', N'CurrencyRate', 'CONSTRAINT', N'DF_CurrencyRate_ModifiedDate'
GO
EXEC sp_addextendedproperty N'MS_Description', N'Foreign key constraint referencing Currency.FromCurrencyCode.', 'SCHEMA', N'Sales', 'TABLE', N'CurrencyRate', 'CONSTRAINT', N'FK_CurrencyRate_Currency_FromCurrencyCode'
GO
EXEC sp_addextendedproperty N'MS_Description', N'Foreign key constraint referencing Currency.ToCurrencyCode.', 'SCHEMA', N'Sales', 'TABLE', N'CurrencyRate', 'CONSTRAINT', N'FK_CurrencyRate_Currency_ToCurrencyCode'
GO
EXEC sp_addextendedproperty N'MS_Description', N'Primary key (clustered) constraint', 'SCHEMA', N'Sales', 'TABLE', N'CurrencyRate', 'CONSTRAINT', N'PK_CurrencyRate_CurrencyRateID'
GO
EXEC sp_addextendedproperty N'MS_Description', N'Unique nonclustered index.', 'SCHEMA', N'Sales', 'TABLE', N'CurrencyRate', 'INDEX', N'AK_CurrencyRate_CurrencyRateDate_FromCurrencyCode_ToCurrencyCode'
GO
EXEC sp_addextendedproperty N'MS_Description', N'Clustered index created by a primary key constraint.', 'SCHEMA', N'Sales', 'TABLE', N'CurrencyRate', 'INDEX', N'PK_CurrencyRate_CurrencyRateID'
GO