Create RunWorkload.sql

Author: jdanton

Columnstore/RunWorkload.sql

@@ -0,0 +1,73 @@
+--Observe the size of the table without the clustered columnstore index
+SELECT t.NAME AS TableName
+	,s.NAME AS SchemaName
+	,p.rows AS RowCounts
+	,SUM(a.total_pages) * 8 AS TotalSpaceKB
+	,CAST(ROUND(((SUM(a.total_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS TotalSpaceMB
+	,SUM(a.used_pages) * 8 AS UsedSpaceKB
+	,CAST(ROUND(((SUM(a.used_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS UsedSpaceMB
+	,(SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB
+	,CAST(ROUND(((SUM(a.total_pages) - SUM(a.used_pages)) * 8) / 1024.00, 2) AS NUMERIC(36, 2)) AS UnusedSpaceMB
+FROM sys.tables t
+INNER JOIN sys.indexes i ON t.OBJECT_ID = i.object_id
+INNER JOIN sys.partitions p ON i.object_id = p.OBJECT_ID
+	AND i.index_id = p.index_id
+INNER JOIN sys.allocation_units a ON p.partition_id = a.container_id
+LEFT JOIN sys.schemas s ON t.schema_id = s.schema_id
+WHERE t.NAME = 'Order_Big_CCI'
+GROUP BY t.NAME
+	,s.NAME
+	,p.Rows
+ORDER BY t.NAME TotalSpaceMB 15710.48
+
+--Run the query and observe the IO statistics and the execution time
+SET STATISTICS TIME
+	,IO ON
+
+SELECT dc.city
+	,avg(f.[Total Including Tax]) AS AvgOrderCost
+FROM fact.Order_Big_CCI f
+INNER JOIN Dimension.City dc ON dc.[City Key] = f.[City Key]
+GROUP BY dc.city
+HAVING avg(f.[Total Including Tax]) > 700
+ORDER BY AvgOrderCost DESC
+
+--Create the Columnstore Index (Note: This will take 5-10 minutes)
+
+CREATE CLUSTERED COLUMNSTORE INDEX CCI_Orders ON Fact.Order_Big_CCI
+
+
+--Observe the size of the table wit the clustered columnstore index
+SELECT t.NAME AS TableName
+	,s.NAME AS SchemaName
+	,p.rows AS RowCounts
+	,SUM(a.total_pages) * 8 AS TotalSpaceKB
+	,CAST(ROUND(((SUM(a.total_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS TotalSpaceMB
+	,SUM(a.used_pages) * 8 AS UsedSpaceKB
+	,CAST(ROUND(((SUM(a.used_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS UsedSpaceMB
+	,(SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB
+	,CAST(ROUND(((SUM(a.total_pages) - SUM(a.used_pages)) * 8) / 1024.00, 2) AS NUMERIC(36, 2)) AS UnusedSpaceMB
+FROM sys.tables t
+INNER JOIN sys.indexes i ON t.OBJECT_ID = i.object_id
+INNER JOIN sys.partitions p ON i.object_id = p.OBJECT_ID
+	AND i.index_id = p.index_id
+INNER JOIN sys.allocation_units a ON p.partition_id = a.container_id
+LEFT JOIN sys.schemas s ON t.schema_id = s.schema_id
+WHERE t.NAME = 'Order_Big_CCI'
+GROUP BY t.NAME
+	,s.NAME
+	,p.Rows
+ORDER BY t.NAME 
+
+--Rerun the Query to Observe CS Performance Improvements
+
+SET STATISTICS TIME
+	,IO ON
+
+SELECT dc.city
+	,avg(f.[Total Including Tax]) AS AvgOrderCost
+FROM fact.Order_Big_CCI f
+INNER JOIN Dimension.City dc ON dc.[City Key] = f.[City Key]
+GROUP BY dc.city
+HAVING avg(f.[Total Including Tax]) > 700
+ORDER BY AvgOrderCost DESC