USE [master]
GO
IF EXISTS (SELECT [database_id] FROM sys.databases WHERE [name] = 'WideWorldImportersDW')
ALTER DATABASE [WideWorldImportersDW] SET SINGLE_USER WITH ROLLBACK IMMEDIATE
GO

DECLARE @datafilepath VARCHAR(8000) = CAST(SERVERPROPERTY('InstanceDefaultDataPath') AS VARCHAR(4000)) + 'WideWorldImportersDW.mdf'
DECLARE @logfilepath VARCHAR(8000) = CAST(SERVERPROPERTY('InstanceDefaultLogPath') AS VARCHAR(4000)) + 'WideWorldImportersDW.ldf'
DECLARE @inmemfilepath VARCHAR(8000) = CAST(SERVERPROPERTY('InstanceDefaultDataPath') AS VARCHAR(4000)) + 'WideWorldImportersDW_InMemory_Data_1'
DECLARE @secondaryfilepath VARCHAR(8000) = CAST(SERVERPROPERTY('InstanceDefaultDataPath') AS VARCHAR(4000))+ 'WideWorldImportersDW_2.ndf'

-- Change @backupfile file path as needed
DECLARE @backupfile VARCHAR(8000) = 'E:\SampleDBs\WideWorldImportersDW-Full.bak'
RESTORE DATABASE WideWorldImportersDW
FROM DISK = @backupfile 
WITH MOVE 'WWI_Primary' TO @datafilepath,
    MOVE 'WWI_UserData' TO @secondaryfilepath,
    MOVE 'WWIDW_InMemory_Data_1' TO @inmemfilepath,
    MOVE 'WWI_Log' TO @logfilepath, NOUNLOAD, REPLACE, STATS = 10
GO

USE [master]
GO
ALTER DATABASE [WideWorldImportersDW] MODIFY FILE ( NAME = N'WWI_Log', SIZE = 4GB )
GO

USE WideWorldImportersDW;
GO

/*
Assumes a fresh restore of WideWorldImportersDW
*/

IF OBJECT_ID('Fact.OrderHistory') IS NULL 
BEGIN
    SELECT [Order Key], [City Key], [Customer Key], [Stock Item Key], [Order Date Key], [Picked Date Key], [Salesperson Key], [Picker Key], [WWI Order ID], [WWI Backorder ID], Description, Package, Quantity, [Unit Price], [Tax Rate], [Total Excluding Tax], [Tax Amount], [Total Including Tax], [Lineage Key]
    INTO Fact.OrderHistory
    FROM Fact.[Order];
END;

ALTER TABLE Fact.OrderHistory
ADD CONSTRAINT PK_Fact_OrderHistory PRIMARY KEY NONCLUSTERED ([Order Key] ASC, [Order Date Key] ASC) WITH (DATA_COMPRESSION = PAGE);
GO

CREATE INDEX IX_Stock_Item_Key
ON Fact.OrderHistory ([Stock Item Key])
INCLUDE(Quantity)
WITH (DATA_COMPRESSION = PAGE);
GO

CREATE INDEX IX_OrderHistory_Quantity
ON Fact.OrderHistory ([Quantity])
INCLUDE([Order Key])
WITH (DATA_COMPRESSION = PAGE);
GO

CREATE INDEX IX_OrderHistory_CustomerKey
ON Fact.OrderHistory([Customer Key])
INCLUDE ([Total Including Tax])
WITH (DATA_COMPRESSION = PAGE);
GO

IF (SELECT COUNT(*) FROM [Fact].[OrderHistory]) < 3702592
BEGIN
	DECLARE @i smallint
	SET @i = 0
	WHILE @i < 4
	BEGIN
		INSERT INTO [Fact].[OrderHistory] ([City Key], [Customer Key], [Stock Item Key], [Order Date Key], [Picked Date Key], [Salesperson Key], [Picker Key], [WWI Order ID], [WWI Backorder ID], Description, Package, Quantity, [Unit Price], [Tax Rate], [Total Excluding Tax], [Tax Amount], [Total Including Tax], [Lineage Key])
		SELECT [City Key], [Customer Key], [Stock Item Key], [Order Date Key], [Picked Date Key], [Salesperson Key], [Picker Key], [WWI Order ID], [WWI Backorder ID], Description, Package, Quantity, [Unit Price], [Tax Rate], [Total Excluding Tax], [Tax Amount], [Total Including Tax], [Lineage Key]
		FROM [Fact].[OrderHistory];

		SET @i = @i +1
	END;
END
GO

IF OBJECT_ID('Fact.OrderHistoryExtended') IS NULL 
BEGIN
    SELECT [Order Key], [City Key], [Customer Key], [Stock Item Key], [Order Date Key], [Picked Date Key], [Salesperson Key], [Picker Key], [WWI Order ID], [WWI Backorder ID], Description, Package, Quantity, [Unit Price], [Tax Rate], [Total Excluding Tax], [Tax Amount], [Total Including Tax], [Lineage Key]
    INTO Fact.OrderHistoryExtended
    FROM Fact.[OrderHistory];
END;

ALTER TABLE Fact.OrderHistoryExtended
ADD CONSTRAINT PK_Fact_OrderHistoryExtended PRIMARY KEY NONCLUSTERED ([Order Key] ASC, [Order Date Key] ASC)
WITH (DATA_COMPRESSION = PAGE);
GO

CREATE INDEX IX_Stock_Item_Key
ON Fact.OrderHistoryExtended ([Stock Item Key])
INCLUDE (Quantity);
GO

IF (SELECT COUNT(*) FROM [Fact].[OrderHistory]) < 29620736
BEGIN
	DECLARE @i smallint
	SET @i = 0
	WHILE @i < 3
	BEGIN
		INSERT Fact.OrderHistoryExtended([City Key], [Customer Key], [Stock Item Key], [Order Date Key], [Picked Date Key], [Salesperson Key], [Picker Key], [WWI Order ID], [WWI Backorder ID], Description, Package, Quantity, [Unit Price], [Tax Rate], [Total Excluding Tax], [Tax Amount], [Total Including Tax], [Lineage Key])
		SELECT [City Key], [Customer Key], [Stock Item Key], [Order Date Key], [Picked Date Key], [Salesperson Key], [Picker Key], [WWI Order ID], [WWI Backorder ID], Description, Package, Quantity, [Unit Price], [Tax Rate], [Total Excluding Tax], [Tax Amount], [Total Including Tax], [Lineage Key]
		FROM Fact.OrderHistoryExtended;

		SET @i = @i +1
	END;
END
GO

UPDATE Fact.OrderHistoryExtended
SET [WWI Order ID] = [Order Key];
GO

-- Repeat the following until log shrinks. These demos don't require much log space.
CHECKPOINT
GO
DBCC SHRINKFILE (N'WWI_Log' , 0, TRUNCATEONLY)
GO
SELECT * FROM sys.dm_db_log_space_usage
GO

USE [WideWorldImportersDW];
GO
ALTER DATABASE SCOPED CONFIGURATION CLEAR PROCEDURE_CACHE;
GO

SELECT COUNT(DISTINCT [WWI Order ID])
FROM [Fact].[OrderHistoryExtended]
OPTION (USE HINT('DISALLOW_BATCH_MODE'), RECOMPILE);
GO

USE [WideWorldImportersDW];
GO
ALTER DATABASE SCOPED CONFIGURATION CLEAR PROCEDURE_CACHE;
GO

SELECT APPROX_COUNT_DISTINCT([WWI Order ID])
FROM [Fact].[OrderHistoryExtended]
OPTION (USE HINT('DISALLOW_BATCH_MODE'), RECOMPILE);
GO