A DAC provides a single unit for authoring, deploying, and managing the data-tier objects. A data-tier application is an entity that contains all of the database objects and instance objects used by an application. You must use the SQL Server 2008 R2 client tools, such as SQL Server Management Studio, to perform DAC operations. SP2 does not upgrade the SQL Server 2008 client tools to support DACs. You can deploy, upgrade, register, extract, and delete DACs. Instances of the SQL Server 2008 Database Engine support all DAC operations delivered in SQL Server 2008 R2 after SP2 has been applied. For more information, see Overview of SQL Server Utility in SQL Server 2008 R2 Books Online.
SQL Server 2008 SP2 enables organizations to extend the value of the Utility Control Point to instances of SQL Server 2008 SP2 without having to upgrade those servers to SQL Server 2008 R2.
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