DetailPage-MSS-KB

Microsoft small business knowledge base

Article ID: 963658 - Last Review: April 7, 2009 - Revision: 2.0

Microsoft distributes Microsoft SQL Server 2008 fixes as one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 fix release.

On This Page

SYMPTOMS

Consider the following scenario:
  • In Microsoft SQL Server 2008, you have a table without a clustered index.
  • You enable PAGE compression on the table.
  • You shrink the database.
In this scenario, PAGE compression may be removed.

Note ROW compression will not be affected by this problem. This includes scenarios in which ROW compression is being used directly and scenarios in which ROW compression is used as part of PAGE compression.

RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for SQL Server 2008. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
968382  (http://support.microsoft.com/kb/968382/ ) How to obtain the latest service pack for SQL Server 2008

Cumulative update information

The fix for this issue was first released in Cumulative Update 4. For more information about how to obtain this cumulative update package for SQL Server 2008, click the following article number to view the article in the Microsoft Knowledge Base:
963036  (http://support.microsoft.com/kb/963036/ ) Cumulative update package 4 for SQL Server 2008
Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
956909  (http://support.microsoft.com/kb/956909/ ) The SQL Server 2008 builds that were released after SQL Server 2008 was released

WORKAROUND

To work around this problem, follow these steps:
  1. Create clustered index on the table.
  2. Shrink the database.
  3. Drop the clustered index.
Note All these operations can be done when the database status is ONLINE.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in SQL Server 2008 Service Pack 1.

MORE INFORMATION

You can run the following command to expose the number of the pages that are compressed:
SELECT page_count FROM sys.dm_db_index_physical_stats (
DB_ID (),
OBJECT_ID ('dbo.Pagecompressed'),
NULL, NULL, 'SAMPLED');
GO
For more information about what files are changed, and for information about any prerequisites to apply the cumulative update package that contains the hotfix that is described in this Microsoft Knowledge Base article, click the following article number to view the article in the Microsoft Knowledge Base:
963036  (http://support.microsoft.com/kb/963036/LN/ ) Cumulative update package 4 for SQL Server 2008

REFERENCES

For more information about the list of builds that are available after the release of SQL Server 2008, click the following article number to view the article in the Microsoft Knowledge Base:
956909  (http://support.microsoft.com/kb/956909/ ) The SQL Server 2008 builds that were released after SQL Server 2008 was released
For more information about the Incremental Servicing Model for SQL Server, click the following article number to view the article in the Microsoft Knowledge Base:
935897  (http://support.microsoft.com/kb/935897/ ) An Incremental Servicing Model is available from the SQL Server team to deliver hotfixes for reported problems
For more information about the naming schema for SQL Server updates, click the following article number to view the article in the Microsoft Knowledge Base:
822499  (http://support.microsoft.com/kb/822499/ ) New naming schema for Microsoft SQL Server software update packages
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684  (http://support.microsoft.com/kb/824684/ ) Description of the standard terminology that is used to describe Microsoft software updates

APPLIES TO
  • Microsoft SQL Server 2008 Standard
  • Microsoft SQL Server 2008 Enterprise
  • Microsoft SQL Server 2008 Developer
  • Microsoft SQL Server 2008 Workgroup
Keywords: 
kbsurveynew kbexpertiseadvanced kbqfe kbfix KB963658
Share
Additional support options
Ask The Microsoft Small Business Support Community
Contact Microsoft Small Business Support
Find Microsoft Small Business Support Certified Partner
Find a Microsoft Store For In-Person Small Business Support