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title Configure the two-digit year cutoff Server Configuration Option | Microsoft Docs
description Get acquainted with the "two digit year cutoff" option. Understand how it determines how SQL Server translates two-digit years into four-digit years.
ms.custom
ms.date 03/02/2017
ms.prod sql
ms.prod_service high-availability
ms.reviewer
ms.technology configuration
ms.topic conceptual
helpviewer_keywords
two digit year cutoff option
four-digit years [SQL Server]
ms.assetid d94e81b6-f2e6-47ef-b497-ec3d827a1646
author markingmyname
ms.author maghan

Configure the two digit year cutoff Server Configuration Option

[!INCLUDE SQL Server]

This topic describes how to configure the two digit year cutoff server configuration option in [!INCLUDEssCurrent] by using [!INCLUDEssManStudioFull] or [!INCLUDEtsql]. The two digit year cutoff option specifies an integer from 1753 to 9999 that represents the cutoff year for interpreting two-digit years as four-digit years. The default time span for [!INCLUDEssNoVersion] is 1950-2049, which represents a cutoff year of 2049. This means that [!INCLUDEssNoVersion] interprets a two-digit year of 49 as 2049, a two-digit year of 50 as 1950, and a two-digit year of 99 as 1999. To maintain backward compatibility, leave the setting at the default value.

In This Topic

Before You Begin

Recommendations

  • This option is an advanced option and should be changed only by an experienced database administrator or certified [!INCLUDEssNoVersion] professional.

  • OLE Automation objects use 2030 as the two-digit cutoff year. You can use the two digit year cutoff option to provide consistency in date values between [!INCLUDEssNoVersion] and client applications.

  • To avoid ambiguity with dates, always use four-digit years in your data.

Security

Permissions

Execute permissions on sp_configure with no parameters or with only the first parameter are granted to all users by default. To execute sp_configure with both parameters to change a configuration option or to run the RECONFIGURE statement, a user must be granted the ALTER SETTINGS server-level permission. The ALTER SETTINGS permission is implicitly held by the sysadmin and serveradmin fixed server roles.

Using SQL Server Management Studio

To configure the two digit year cutoff option

  1. In Object Explorer, right-click a server and select Properties.

  2. Click the Misc server settings node.

  3. Under Two digit year support, in the When a two digit year is entered, interpret it as a year between box, type or select a value that is the ending year of the time span.

Using Transact-SQL

To configure the two digit year cutoff option

  1. Connect to the [!INCLUDEssDE].

  2. From the Standard bar, click New Query.

  3. Copy and paste the following example into the query window and click Execute. This example shows how to use sp_configure to set the value of the two digit year cutoff option to 2030.

USE AdventureWorks2012 ;  
GO  
EXEC sp_configure 'show advanced options', 1;  
GO  
RECONFIGURE ;  
GO  
EXEC sp_configure 'two digit year cutoff', 2030 ;  
GO  
RECONFIGURE;  
GO

For more information, see Server Configuration Options (SQL Server).

Follow Up: After you configure the two digit year cutoff option

The setting takes effect immediately without restarting the server.

See Also

Server Configuration Options (SQL Server)
sp_configure (Transact-SQL)
RECONFIGURE (Transact-SQL)