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FIX: An out-of-memory error occurs when you run a DAX query against a tabular model in SQL Server 2012 Analysis ServicesArticle ID: 2693568 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. On This PageSymptomsAssume that you run a Data Analysis Expressions (DAX) query against a tabular model in Microsoft SQL Server 2012 Analysis Services (SSAS 2012). The DAX query contains a calculated measure that has many nested IF conditions or a Switch command that has many cases. In this situation, an out-of-memory error may occur. CauseThis issue occurs because the DAX engine generates an inefficient query plan for the calculated measure. The query plan includes redundant joins for the calculated measure. ResolutionCumulative update informationSQL Server 2012The fix for this issue was first released in Cumulative Update 1 for SQL Server 2012. For more information about how to obtain this cumulative update package for SQL Server, click the following article number to view the article in the Microsoft Knowledge Base:2679368 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 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:
(http://support.microsoft.com/kb/2679368/
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Cumulative update 1 for SQL Server 20122692828
(http://support.microsoft.com/kb/2692828/
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The SQL Server 2012 builds that were released after SQL Server 2012 was releasedStatusMicrosoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
ReferencesFor more information about DAX queries, visit the following Microsoft Developer Network (MSDN) website: DAX Query Syntax Reference For more information about tabular modeling, visit the following MSDN website:
(http://msdn.microsoft.com/en-us/library/gg492156(v=SQL.110).aspx)
Tabular Modeling (SSAS Tabular) 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:
(http://msdn.microsoft.com/en-us/library/hh212945(v=SQL.110).aspx)
935897 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:
(http://support.microsoft.com/kb/935897/
)
An Incremental Servicing Model is available from the SQL Server team to deliver hotfixes for reported problems822499 For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/822499/
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Naming schema for Microsoft SQL Server software update packages824684
(http://support.microsoft.com/kb/824684/
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Description of the standard terminology that is used to describe Microsoft software updatesPropertiesArticle ID: 2693568 - Last Review: November 22, 2012 - Revision: 5.2
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