KB3092702 - FIX: It takes a longer time than earlier versions of SQL Server when you run DBCC CHECKDB in SQL Server 2012 or SQL Server 2014

Symptoms

Assume that you have a table that has lots of partitions in Microsoft SQL Server 2012 or SQL Server 2014. When you run DBCC CHECKDB against the database that contains the table, it takes a much longer time to complete than in earlier versions of SQL Server. Additionally. a high CPU usage occurs.

Note You can run the following command to check the number of the partitions that exist per object/index:

select COUNT(*) from sys.system_internals_partitions GROUP BY object_id, index_id



Resolution

The issue was first fixed in the following cumulative update of SQL Server:

Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. We recommend that you download and install the latest cumulative updates for SQL Server:


Status

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

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