如何在SQL中从DateTime格式获取时间?

我想从DateTime列使用SQL查询只得到时间使用SQL Server 2005和2008 默认的输出:

AttDate                   
==
2011-02-09 13:09:00    
2011-02-09 14:10:00

我想要这样的输出:

AttDate                Time 
==
2011-02-09 13:09:00    13:09
2011-02-09 14:10:00    14:10

当前回答

MSSQL2012或以上版本

cast(dateadd(ms,datediff(ms, [StartDateTime], [StopDateTime]),0) as Time(0))

…或…

convert(time(0),dateadd(ms,datediff(ms, [StartDateTime], [StopDateTime]),0) )

其他回答

MSSQL2012或以上版本

cast(dateadd(ms,datediff(ms, [StartDateTime], [StopDateTime]),0) as Time(0))

…或…

convert(time(0),dateadd(ms,datediff(ms, [StartDateTime], [StopDateTime]),0) )

假设Sql server

SELECT CONVERT(VARCHAR(8),GETDATE(),108)

SQL Server 2008:

SELECT cast(AttDate as time) [time]
FROM yourtable

早期版本:

SELECT convert(char(5), AttDate, 108) [time]
FROM yourtable

我经常使用这个脚本从DateTime获取时间:

SELECT CONVERT(VARCHAR(9),RIGHT(YOURCOLUMN_DATETIME,9),108) FROM YOURTABLE

select cast (as time(0))

这是一个很好的条款。例如:

(select cast(start_date as time(0))) AS 'START TIME'

推荐文章