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Assume that you have Microsoft SQL Server installed in a high-end server. When there are many incoming ad hoc queries, concurrent query compilations occur in the context of the sqlsource_transform system transaction, and you may notice that CPU utilization is very high.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


Cumulative Update Information:

The issue is fixed in the following cumulative update for SQL Server:

About cumulative updates for SQL Server:

Each new cumulative update for SQL Server contains all the hotfixes and security fixes that were in the previous build. We recommend that you install the latest build for your version of SQL Server:


Learn about the  terminology that Microsoft uses to describe software updates.

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