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

试试这个:

select  convert(nvarchar,CAST(getdate()as time),100)

其他回答

Declare @date Datetime = '06/18/2021 14:24:31';
Select FORMAT(@date, 'h\:m tt', 'en-US') As Timey

输出:

2:24pm

SQL Server 2008+有一个“时间”数据类型

SELECT 
    ..., CAST(MyDateTimeCol AS time)
FROM
   ...

对于旧版本，没有varchar转换

SELECT 
    ..., DATEADD(dd, DATEDIFF(dd, MyDateTimeCol, 0), MyDateTimeCol)
FROM
   ...

SQL Server 2008:

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

早期版本:

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

获取服务器日期

SELECT LTRIM(RIGHT(CONVERT(VARCHAR(20), GETDATE(), 100), 7)) FROM TABLENAME WHERE ...

如果存储在表中

SELECT LTRIM(RIGHT(CONVERT(VARCHAR(20), datename, 100), 7)) FROM TABLENAME WHERE ...

结果:

11:41AM

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