在SQL中将时间转换为12小时格式

Question

如何在SQL Server 2008中将24小时格式化时间转换为12小时格式化时间？

Answer 1

您是否在时间类型的变量/列中有当前时间？如果是这样,很容易:

declare @t time
set @t = '14:40'

select CONVERT(varchar(15),@t,100)

结果:

2:40PM

如果它在一个datetime(2)变量中,那么在运行CONVERT之后你将不得不去除日期部分.如果它在一个字符串中,那么首先CONVERT它time,然后使用上面的代码.

Answer 2

有时您需要内联:

SELECT CONVERT(varchar(15),  CAST(GETDATE() AS TIME), 100) as AmPmTime

Answer 3

要添加到rAdmin的注释,语法为:

CONVERT(data_type,expression,style_code)

以下是您可以使用的其他一些样式代码:

SELECT
GETDATE() AS GetDate,
CONVERT(VARCHAR,GETDATE(),0) AS '0',
CONVERT(VARCHAR,GETDATE(),100) AS '100',
CONVERT(VARCHAR,GETDATE(),1) AS '1',
CONVERT(VARCHAR,GETDATE(),101) AS '101',
CONVERT(VARCHAR,GETDATE(),7) AS '7',
CONVERT(VARCHAR,GETDATE(),107) AS '107',
CONVERT(VARCHAR,GETDATE(),108) AS '108',
CONVERT(VARCHAR,GETDATE(),108) AS '108',
CONVERT(VARCHAR,GETDATE(),10) AS '10',
CONVERT(VARCHAR,GETDATE(),110) AS '110',
CONVERT(VARCHAR,GETDATE(),12) AS '12',
CONVERT(VARCHAR,GETDATE(),112) AS '112',
CONVERT(VARCHAR,GETDATE(),14) AS '14',
CONVERT(VARCHAR,GETDATE(),114) AS '114'

试图发布结果集的图像,但我需要"获得超过10个声望来发布图像".

Answer 4

Select Right(IsNull(Convert(Varchar,GetDate(),100),''),7)