13. SET LANGUAGE对日期处理的影响案例

--以下示例演示了在不同的语言环境(SET LANGUAGE)下，DATENAME与CONVERT函数的不同结果。
USE master

--设置会话的语言环境为: English
SET LANGUAGE N'English'
SELECT 
	DATENAME(Month,GETDATE()) AS [Month],
	DATENAME(Weekday,GETDATE()) AS [Weekday],
	CONVERT(varchar,GETDATE(),109) AS [CONVERT]
/*--结果:
Month    Weekday   CONVERT
------------- -------------- -------------------------------
March    Tuesday   Mar 15 2005  8:59PM
--*/

--设置会话的语言环境为: 简体中文
SET LANGUAGE N'简体中文'
SELECT 
	DATENAME(Month,GETDATE()) AS [Month],
	DATENAME(Weekday,GETDATE()) AS [Weekday],
	CONVERT(varchar,GETDATE(),109) AS [CONVERT]
/*--结果
Month    Weekday    CONVERT
------------- --------------- -----------------------------------------
05       星期四     05 19 2005  2:49:20:607PM
--*/