如何使用T-SQL将秒转换为HH:MM:SS

Question

情况是你有一个Seconds(XXX.XX)的值,并且你想使用T-SQL转换为HH:MM:SS.

例:

• 121.25秒变为00:02:01.25

Answer 1

在丢弃小数部分时,您希望乘以毫秒.

SELECT DATEADD(ms, 121.25 * 1000, 0)

如果你想要它没有日期部分你可以使用CONVERT,样式114

SELECT CONVERT(varchar, DATEADD(ms, 121.25 * 1000, 0), 114)

Answer 2

如果您的时间超过24小时,则无法使用DATEADD和CONVERT方法正确处理.

SELECT CONVERT(varchar, DATEADD(ms, 24*60*60 * 1000, 0), 114)
00:00:00:000

以下功能将处理超过24小时的时间(〜最多35,791,394小时).

create function [dbo].[ConvertTimeToHHMMSS]
(
    @time decimal(28,3), 
    @unit varchar(20)
)
returns varchar(20)
as
begin

    declare @seconds decimal(18,3), @minutes int, @hours int;

    if(@unit = 'hour' or @unit = 'hh' )
        set @seconds = @time * 60 * 60;
    else if(@unit = 'minute' or @unit = 'mi' or @unit = 'n')
        set @seconds = @time * 60;
    else if(@unit = 'second' or @unit = 'ss' or @unit = 's')
        set @seconds = @time;
    else set @seconds = 0; -- unknown time units

    set @hours = convert(int, @seconds /60 / 60);
    set @minutes = convert(int, (@seconds / 60) - (@hours * 60 ));
    set @seconds = @seconds % 60;

    return 
        convert(varchar(9), convert(int, @hours)) + ':' +
        right('00' + convert(varchar(2), convert(int, @minutes)), 2) + ':' +
        right('00' + convert(varchar(6), @seconds), 6)

end

用法:

select dbo.ConvertTimeToHHMMSS(123, 's')
select dbo.ConvertTimeToHHMMSS(96.999, 'mi')
select dbo.ConvertTimeToHHMMSS(35791394.999, 'hh')
0:02:03.000
1:36:59.940
35791394:59:56.400

Answer 3

对于那些使用DATEADD和CONVERT超过24小时的问题的人,我们可以使用模数来解决这个问题:

SELECT CONVERT(varchar, @seconds / 86400 ) + ':' + -- Days
CONVERT(varchar, DATEADD(ms, ( @seconds % 86400 ) * 1000, 0), 114)
as "Converted to D:HH:MM:SS.MS"

Answer 4

DECLARE @seconds AS int = 896434;
SELECT
    CONVERT(varchar, (@seconds / 86400))                --Days
    + ':' +
    CONVERT(varchar, DATEADD(ss, @seconds, 0), 108);    --Hours, Minutes, Seconds

输出:

10:09:00:34

Answer 5

使用 SQL Server 05，我可以使用以下方法使其工作：

declare @OrigValue int;
set @OrigValue = 121.25;
select replace(str(@OrigValue/3600,len(ltrim(@OrigValue/3600))+abs(sign(@OrigValue/359999)-1)) + ':' + str((@OrigValue/60)%60,2) + ':' + str(@OrigValue%60,2),' ','0')

Answer 6

使用SQL Server 2008

declare @Seconds as int = 3600;
SELECT CONVERT(time(0), DATEADD(SECOND, @Seconds, 0)) as 'hh:mm:ss'