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discontinued-database-engine-functionality-in-sql-server.md

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title Discontinued database engine functionality
description Learn which database engine functionality and features were discontinued in SQL Server.
author MikeRayMSFT
ms.author mikeray
ms.reviewer randolphwest
ms.date 12/07/2023
ms.service sql
ms.subservice release-landing
ms.topic conceptual
helpviewer_keywords
VIA protocol
unsupported features [SQL Server]
SQL Mail
discontinued functionality [SQL Server]
RESTORE WITH DBO_ONLY
BACKUP WITH PASSWORD
user instances enabled
BACKUP WITH MEDIAPASSWORD
AWE
SQL-DMO
*= and =*
80 compatibility levels
COMPUTE BY
user instance timeout
sp_dropalias
COMPUTE
SSL
WITH APPEND
sys.database_principal_aliases
sp_dboption
DATABASEPROPERTY
FASTFIRSTROW hint
SET DISABLE_DEF_CNST_CHK
monikerRange >=sql-server-linux-2017 || >=sql-server-2016

Discontinued Database Engine functionality in SQL Server

[!INCLUDE sqlserver]

This article describes the [!INCLUDE ssDE] features that are no longer available in [!INCLUDE ssnoversion].

Discontinued features in [!INCLUDE sssql22]

  • The following Machine Learning Services packages are no longer included with installation of [!INCLUDE sssql22-md]. Instead, you can install any custom packages as desired. For more information, see What's new in SQL Server Machine Learning Services?

    Language Package
    Python microsoftml (Python package in SQL Server Machine Learning Services)
    R olapR (R package in SQL Server Machine Learning Services)
    R sqlrutils (R package in SQL Server Machine Learning Services)
    R MicrosoftML (R package in SQL Server Machine Learning Services)

  • SQL Server Big Data Clusters will be retired. See information in [[!INCLUDE big-data-cluster] overview](../big-data-cluster/big-data-cluster-overview.md).

  • SQL Server PolyBase scale-out groups will be retired. Scale out group functionality is removed from the product in [!INCLUDE sssql22-md]. PolyBase data virtualization continues to be fully supported as a scale-up feature in SQL Server.

  • Support for Hadoop (HDFS) external data sources will be retired for SQL Server PolyBase.

  • See Changes to PolyBase support in SQL Server.

  • Starting in [!INCLUDE sssql22-md], Hadoop external data sources are no longer supported. It's required to manually recreate external data sources previously created with TYPE = HADOOP, and any external table that uses this external data source. Users will also need to configure their external data sources to use new connectors when connecting to Azure Storage.

External Data Source From To
Azure Blob Storage wasb[s] abs
ADLS Gen 2 abfs[s] adls

Discontinued features in [!INCLUDE sssql19]

The following database scoped configuration options are discontinued:

  • DISABLE_BATCH_MODE_ADAPTIVE_JOIN
  • DISABLE_BATCH_MODE_MEMORY_GRANT_FEEDBACK
  • DISABLE_INTERLEAVED_EXECUTION_TVF

For current configuration options, see ALTER DATABASE SCOPED CONFIGURATION (Transact-SQL).

Discontinued features in [!INCLUDE sssql17]

No features were discontinued in [!INCLUDE sssql14].

Discontinued features in [!INCLUDE sssql16-md]

Previous versions

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