Cumulative Update 12 for SQL Server 2014 SP2

Applies to: SQL Server 2014 Service Pack 2SQL Server 2014 DeveloperSQL Server 2014 Enterprise

This article describes Cumulative Update package 12 (CU12) (build number: 12.0.5589.7) for Microsoft SQL Server 2014 Service Pack 2 (SP2). This update contains fixes that were released after the initial release of SQL Server 2014 SP2.

Cumulative update

Cumulative updates (CU) are now available at the Microsoft Download Center.

Only the most recent CU that was released for SQL Server 2014 SP2 is available at the Download Center.
  • Each new CU contains all the fixes that were included with the previous CU for the installed version/Service Pack of SQL Server.
  • Microsoft recommends ongoing, proactive installation of CUs as they become available:
    • SQL Server CUs are certified to the same levels as Service Packs, and should be installed at the same level of confidence.
    • Historical data shows that a significant number of support cases involve an issue that has already been addressed in a released CU.
    • CUs may contain added value over and above hotfixes. This includes supportability, manageability, and reliability updates.
  • Just as for SQL Server service packs, we recommend that you test CUs before you deploy them to production environments.
  • We recommend that you upgrade your SQL Server installation to the latest SQL Server 2014 service pack.

How to obtain this cumulative update package

The following update is available from the Microsoft Download Center:
If the download page does not appear, contact Microsoft Customer Service and Support to obtain the cumulative update package.

Note After future cumulative updates are released for SQL Server 2014, this and all previous CUs can be located and downloaded from the Microsoft Windows Update Catalog. However, Microsoft recommends that you always install the latest cumulative update available.

Hotfixes that are included in this cumulative update package

VSTS bug number KB article number Description Fix area
11682702 4094893 FIX: Database can't be dropped after its storage is disconnected and reconnected in SQL Server SQL Engine
11634178 4132896 Transaction Log "full" even when there is sufficient space available and Autogrowth is enabled in SQL Server SQL Engine
11296778 4057307 FIX: Multidimensional mode randomly crashes and an access violation occurs in SSAS 2016 or in SSAS 2014 Analysis Services
11824715 4133191 FIX: A memory leak occurs in sqlwepxxx.dll causes the WmiPrvSe.exe process to crash SQL Engine
11620771 4019799 FIX: Deadlock when run the "CleanOrphanedPolicies" and "DeleteDataSources" built-in stored procedures together in SSRS 2016 Reporting Services
11714673 4094706 FIX: Worker thread hangs after another thread is aborted when running a parallel query in SQL Server SQL Engine
11591371 4091245 FIX: Access violation occurs when you query a table with an integer column in SQL Server 2017 and SQL Server 2016 SQL performance
11816663 3173472 SECURITY_CRYPTO_CONTEXT_MUTEX waits cause SQL Server 2016 to stop responding to client requests in SQL Server 2014 and 2016 SQL Engine
11832700 4131251 FIX: Thai characters in SSAS for SQL Server exported to a PDF file are displayed incorrectly Reporting Services
11839435 4294694 FIX: Access violation when you try to access a table when page compression is enabled on the table in SQL Server SQL Engine
11887074 4135113 FIX: Change tracking record is inconsistent during an update on a table that has a clustered or unique index in SQL Server SQL Engine
11967440 4230730 FIX: A dead latch condition occurs when you run an online index rebuild or a merge command in SQL Server SQL Engine
11922730 4316858 FIX: "Corrupted index" message and server disconnection when an update statistics query uses hash aggregate on SQL Server SQL performance
12055727 4293839 FIX: TDE database goes offline during log flush if you lose connection to the EKM provider in SQL Server SQL security
12104566 4338204 FIX: Circular dependency between column names for a calculated table that summarizes the partition query dataset in SQL Server Analysis Services
12118405 4058175 FIX: TDE-enabled backup and restore are slow if the encryption key is stored in an EKM provider in SQL Server SQL Engine

Notes for this update

Hybrid environments deployment

When you deploy an update to a hybrid environment (such as AlwaysOn, replication, cluster, and mirroring), we recommend that you refer to the following articles before you deploy the update:

Cumulative Update package information


To apply this cumulative update package, you must be running SQL Server 2014 SP2.

Restart information

You may have to restart the computer after you apply this cumulative update package.

Registry information

To use one of the hotfixes in this package, you do not have to make any changes to the registry.