USE AdventureWorks2008R2;
GO
IF OBJECT_ID ('dbo.CleanTableTest','U') IS NOT NULL
DROP TABLE dbo.CleanTableTest;
GO
CREATE TABLE dbo.CleanTableTest
(FileName nvarchar(4000),DocumentSummary nvarchar(max),Document varbinary(max)
);
GO
-- Populate the table with data from the Production.Document table.
INSERT INTO dbo.CleanTableTest
SELECT REPLICATE(FileName,1000),DocumentSummary,Document
FROM Production.Document;
GO
-- Verify the current page counts and average space used in the dbo.CleanTableTest table.
DECLARE @db_id SMALLINT;
DECLARE @object_id INT;
SET @db_id = DB_ID(N'AdventureWorks2008R2');
SET @object_id = OBJECT_ID(N'AdventureWorks2008R2.dbo.CleanTableTest');
SELECT alloc_unit_type_desc,page_count,avg_page_space_used_in_percent,record_count
FROM sys.dm_db_index_physical_stats(@db_id,@object_id,NULL,'Detailed');
GO
-- Drop two variable-length columns from the table.
ALTER TABLE dbo.CleanTableTest
DROP COLUMN FileName,Document;
GO
-- Verify the page counts and average space used in the dbo.CleanTableTest table
-- Notice that the values have not changed.
DECLARE @db_id SMALLINT;
DECLARE @object_id INT;
SET @db_id = DB_ID(N'AdventureWorks2008R2');
SET @object_id = OBJECT_ID(N'AdventureWorks2008R2.dbo.CleanTableTest');
SELECT alloc_unit_type_desc,'Detailed');
GO
-- Run DBCC CLEANTABLE.
DBCC CLEANTABLE (AdventureWorks2008R2,"dbo.CleanTableTest");
GO
-- Verify the values in the dbo.CleanTableTest table after the DBCC CLEANTABLE command.
DECLARE @db_id SMALLINT;
DECLARE @object_id INT;
SET @db_id = DB_ID(N'AdventureWorks2008R2');
SET @object_id = OBJECT_ID(N'AdventureWorks2008R2.dbo.CleanTableTest');
SELECT alloc_unit_type_desc,'Detailed');
GO
