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FIX: Tablediff utility reports incorrect results when a table contains a primary key in a uniqueidentifier column in SQL Server 2012

Microsoft distributes Microsoft SQL Server 2012 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 2012 fix release.
Symptoms
When you use the tablediff utility (Tablediff.exe) to compare two tables in Microsoft SQL Server 2012, the tablediff utility reports incorrect results.

This issue occurs when the following conditions are true:
  • A table contains a primary key (composite or not) in a uniqueidentifier data type column.
  • The uniqueidentifier data type column is the first column in the table definition.
  • In the destination table, there is at least one value in the uniqueidentifier column that is lower than the lowest value in the source table.

Resolution

Cumulative update information

Cumulative update package 1 for SQL Server 2012 Service Pack 1

The fix for this issue was first released in Cumulative Update 1. For more information about how to obtain this cumulative update package for SQL Server 2012 Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base:
2765331 Cumulative update package 1 for SQL Server 2012 Service Pack 1
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 2012 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:
2772858 The SQL Server 2012 builds that were released after SQL Server 2012 Service Pack 1 was released

Cumulative update package 4 for SQL Server 2012

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 2012, click the following article number to view the article in the Microsoft Knowledge Base:
2758687 Cumulative update package 4 for SQL Server 2012
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 2012 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:
2692828 The SQL Server 2012 builds that were released after SQL Server 2012 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, alter the table so that the uniqueidentifier column is not the first column.
References
For more information about the tablediff utility, go to the following MSDN website: For more information the Incremental Servicing Model for SQL Server, click the following article number to view the article in the Microsoft Knowledge Base:
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 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 Description of the standard terminology that is used to describe Microsoft software updates
Properties

Article ID: 2762593 - Last Review: 11/20/2012 21:39:00 - Revision: 4.0

Microsoft SQL Server 2012 Enterprise, Microsoft SQL Server 2012 Developer, Microsoft SQL Server 2012 Standard, Microsoft SQL Server 2012 Web, Microsoft SQL Server 2012 Express

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