Microsoft distributes Microsoft SQL Server 2008 Service Pack 2 (SP2) fixes as one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security updates that were included with the previous SQL Server 2008 SP2 update release.
Symptoms
Consider the following scenario:
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You install Microsoft SQL Server 2008 Reporting Services (SSRS 2008) on a computer.
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You add a drillthrough report link to a report. The link targets another report.
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You set some nullable parameters that are passed to the drillthrough report, and the value of a parameter is null.
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You export the report that contains the drillthrough report link to a Word document or to an Excel worksheet.
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You click the drillthrough report link.
In this scenario, you receive the following error message:
Cannot download the information you requested.
Cause
This issue occurs because the export operation generates the drillthrough report link incorrectly.
Resolution
Cumulative update information
SQL Server 2008 Service Pack 3
The fix for this issue was first released in Cumulative Update 3 for SQL Server 2008 Service Pack 3.
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. Microsoft recommends 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:
2629969 The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 3 was released Microsoft SQL Server 2008 hotfixes are created for specific SQL Server service packs. You must apply a SQL Server 2008 Service Pack 3 hotfix to an installation of SQL Server 2008 Service Pack 3. By default, any hotfix that is provided in a SQL Server service pack is included in the next SQL Server service pack.
SQL Server 2008 Service Pack 2
The fix for this issue was first released in cumulative update package 7 for SQL Server 2008 Service Pack 2. For more information about how to obtain this cumulative update package for SQL Server 2008 Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:
2617148 Cumulative update package 7 for SQL Server 2008 Service Pack 2Note Because the builds are cumulative, each new update release contains all the hotfixes and all the security updates that were included with the previous SQL Server 2008 Service Pack 2 update release. We recommend that you consider applying the most recent update release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2402659 The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 2 was released
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Workaround
To work around this issue, do not use nullable parameters in the report.
