Get the time of a datetime using T-SQL?

问题

How to get the time for a given datetime value?

I have a datetime in database like this:

2010-09-06 17:07:28.170

and want only the time portion:

17:07:28.170

Is there a function for that or something?

回答1:

Just to add that from SQL Server 2008, there is a TIME datatype so from then on you can do:

SELECT CONVERT(TIME, GETDATE())

Might be useful for those that use SQL 2008+ and find this question.

回答2:

In case of SQL Server, this should work

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

回答3:

Try this

SELECT CAST(DataField AS time(7)) AS 'time'

http://msdn.microsoft.com/en-us/library/bb677243.aspx

回答4:

Assuming the title of your question is correct and you want the time:

SELECT CONVERT(char,GETDATE(),14) 

Edited to include millisecond.

回答5:

CAST(CONVERT(CHAR(8),GETUTCDATE(),114) AS DATETIME)

IN SQL Server 2008+

CAST(GETUTCDATE() AS TIME)

来源：https://stackoverflow.com/questions/3656492/get-the-time-of-a-datetime-using-t-sql