Comment convertir bigint (UNIX timestamp) en datetime dans SQL Server?
9 réponses
, essayez:
CREATE FUNCTION dbo.fn_ConvertToDateTime (@Datetime BIGINT)
RETURNS DATETIME
AS
BEGIN
DECLARE @LocalTimeOffset BIGINT
,@AdjustedLocalDatetime BIGINT;
SET @LocalTimeOffset = DATEDIFF(second,GETDATE(),GETUTCDATE())
SET @AdjustedLocalDatetime = @Datetime - @LocalTimeOffset
RETURN (SELECT DATEADD(second,@AdjustedLocalDatetime, CAST('1970-01-01 00:00:00' AS datetime)))
END;
GO
cela a fonctionné pour moi:
Select
dateadd(S, [unixtime], '1970-01-01')
From [Table]
au cas où quelqu'un se demande pourquoi 1970-01-01 ,cela s'appelle le temps D'époque.Ci-dessous une citation de wikipedia
le nombre de secondes qui se sont écoulées depuis 00: 00:00 temps universel coordonné (UTC), le jeudi 1er janvier 1970,[1][note 1] sans compter les secondes intercalaires
comme ceci
ajouter le datetime Unix (epoch) à la date de base en secondes
pour l'instant(2010-05-25 07:56:23.000)
SELECT dateadd(s,1274756183,'19700101 05:00:00:000')
si vous voulez faire marche arrière, regardez ce http://wiki.lessthandot.com/index.php/Epoch_Date
Cela va faire:
declare @UNIX_TIME int
select @UNIX_TIME = 1111111111
-- Using dateadd to add seconds to 1970-01-01
select [Datetime from UNIX Time] = dateadd(!precision!,@UNIX_TIME,'1970-01-01')
au lieu de !la précision! utilisation: ss, ms ou mcs selon la précision de l'horodatage. Bigint est capable de supporter la précision microseconde.
si quelqu'un obtient " erreur de débordement arithmétique conversion expression de type de données int "en raison de l'horodatage unix est dans bigint (au lieu de int), vous pouvez utiliser ceci:
SELECT DATEADD(S, CONVERT(int,LEFT(1462924862735870900, 10)), '1970-01-01')
FROM TABLE
remplacer l'horodatage codé en dur pour votre colonne actuelle avec l'horodatage unix
Source: MSSQL bigint Unix Timestamp to Datetime with millisecondes
Test:
SELECT
from_unixtime(timestamp)
FROM
your_table
http://www.w3resource.com/mysql/date-and-time-functions/mysql-from_unixtime-function.php
C'est construire sur le travail Daniel Little fait pour cette question, mais en tenant compte de l'heure d'été (travaux pour les dates 01-01 1902 et plus en raison de la limite int sur la fonction dateadd):
Nous devons d'abord créer une table qui va stocker les plages de dates de l'heure d'été (source: Histoire du temps aux États-unis ):
CREATE TABLE [dbo].[CFG_DAY_LIGHT_SAVINGS_TIME](
[BEGIN_DATE] [datetime] NULL,
[END_DATE] [datetime] NULL,
[YEAR_DATE] [smallint] NULL
) ON [PRIMARY]
GO
INSERT INTO CFG_DAY_LIGHT_SAVINGS_TIME VALUES
('2001-04-01 02:00:00.000', '2001-10-27 01:59:59.997', 2001),
('2002-04-07 02:00:00.000', '2002-10-26 01:59:59.997', 2002),
('2003-04-06 02:00:00.000', '2003-10-25 01:59:59.997', 2003),
('2004-04-04 02:00:00.000', '2004-10-30 01:59:59.997', 2004),
('2005-04-03 02:00:00.000', '2005-10-29 01:59:59.997', 2005),
('2006-04-02 02:00:00.000', '2006-10-28 01:59:59.997', 2006),
('2007-03-11 02:00:00.000', '2007-11-03 01:59:59.997', 2007),
('2008-03-09 02:00:00.000', '2008-11-01 01:59:59.997', 2008),
('2009-03-08 02:00:00.000', '2009-10-31 01:59:59.997', 2009),
('2010-03-14 02:00:00.000', '2010-11-06 01:59:59.997', 2010),
('2011-03-13 02:00:00.000', '2011-11-05 01:59:59.997', 2011),
('2012-03-11 02:00:00.000', '2012-11-03 01:59:59.997', 2012),
('2013-03-10 02:00:00.000', '2013-11-02 01:59:59.997', 2013),
('2014-03-09 02:00:00.000', '2014-11-01 01:59:59.997', 2014),
('2015-03-08 02:00:00.000', '2015-10-31 01:59:59.997', 2015),
('2016-03-13 02:00:00.000', '2016-11-05 01:59:59.997', 2016),
('2017-03-12 02:00:00.000', '2017-11-04 01:59:59.997', 2017),
('2018-03-11 02:00:00.000', '2018-11-03 01:59:59.997', 2018),
('2019-03-10 02:00:00.000', '2019-11-02 01:59:59.997', 2019),
('2020-03-08 02:00:00.000', '2020-10-31 01:59:59.997', 2020),
('2021-03-14 02:00:00.000', '2021-11-06 01:59:59.997', 2021),
('2022-03-13 02:00:00.000', '2022-11-05 01:59:59.997', 2022),
('2023-03-12 02:00:00.000', '2023-11-04 01:59:59.997', 2023),
('2024-03-10 02:00:00.000', '2024-11-02 01:59:59.997', 2024),
('2025-03-09 02:00:00.000', '2025-11-01 01:59:59.997', 2025),
('1967-04-30 02:00:00.000', '1967-10-29 01:59:59.997', 1967),
('1968-04-28 02:00:00.000', '1968-10-27 01:59:59.997', 1968),
('1969-04-27 02:00:00.000', '1969-10-26 01:59:59.997', 1969),
('1970-04-26 02:00:00.000', '1970-10-25 01:59:59.997', 1970),
('1971-04-25 02:00:00.000', '1971-10-31 01:59:59.997', 1971),
('1972-04-30 02:00:00.000', '1972-10-29 01:59:59.997', 1972),
('1973-04-29 02:00:00.000', '1973-10-28 01:59:59.997', 1973),
('1974-01-06 02:00:00.000', '1974-10-27 01:59:59.997', 1974),
('1975-02-23 02:00:00.000', '1975-10-26 01:59:59.997', 1975),
('1976-04-25 02:00:00.000', '1976-10-31 01:59:59.997', 1976),
('1977-04-24 02:00:00.000', '1977-10-31 01:59:59.997', 1977),
('1978-04-30 02:00:00.000', '1978-10-29 01:59:59.997', 1978),
('1979-04-29 02:00:00.000', '1979-10-28 01:59:59.997', 1979),
('1980-04-27 02:00:00.000', '1980-10-26 01:59:59.997', 1980),
('1981-04-26 02:00:00.000', '1981-10-25 01:59:59.997', 1981),
('1982-04-25 02:00:00.000', '1982-10-25 01:59:59.997', 1982),
('1983-04-24 02:00:00.000', '1983-10-30 01:59:59.997', 1983),
('1984-04-29 02:00:00.000', '1984-10-28 01:59:59.997', 1984),
('1985-04-28 02:00:00.000', '1985-10-27 01:59:59.997', 1985),
('1986-04-27 02:00:00.000', '1986-10-26 01:59:59.997', 1986),
('1987-04-05 02:00:00.000', '1987-10-25 01:59:59.997', 1987),
('1988-04-03 02:00:00.000', '1988-10-30 01:59:59.997', 1988),
('1989-04-02 02:00:00.000', '1989-10-29 01:59:59.997', 1989),
('1990-04-01 02:00:00.000', '1990-10-28 01:59:59.997', 1990),
('1991-04-07 02:00:00.000', '1991-10-27 01:59:59.997', 1991),
('1992-04-05 02:00:00.000', '1992-10-25 01:59:59.997', 1992),
('1993-04-04 02:00:00.000', '1993-10-31 01:59:59.997', 1993),
('1994-04-03 02:00:00.000', '1994-10-30 01:59:59.997', 1994),
('1995-04-02 02:00:00.000', '1995-10-29 01:59:59.997', 1995),
('1996-04-07 02:00:00.000', '1996-10-27 01:59:59.997', 1996),
('1997-04-06 02:00:00.000', '1997-10-26 01:59:59.997', 1997),
('1998-04-05 02:00:00.000', '1998-10-25 01:59:59.997', 1998),
('1999-04-04 02:00:00.000', '1999-10-31 01:59:59.997', 1999),
('2000-04-02 02:00:00.000', '2000-10-29 01:59:59.997', 2000)
GO
maintenant nous créons une fonction pour chaque fuseau horaire américain. Ce suppose que le temps unix est en millisecondes. S'il est en secondes, supprimer le / 1000 du code:
Pacifique
create function [dbo].[UnixTimeToPacific]
(@unixtime bigint)
returns datetime
as
begin
declare @pacificdatetime datetime
declare @interimdatetime datetime = dateadd(s, @unixtime/1000, '1970-01-01')
select @pacificdatetime = dateadd(hour,case when @interimdatetime between begin_date and end_date then -7 else -8 end ,@interimdatetime)
from cfg_day_light_savings_time where year_date = datepart(year,@interimdatetime)
if @pacificdatetime is null
select @pacificdatetime= dateadd(hour, -7, @interimdatetime)
return @pacificdatetime
end
est
create function [dbo].[UnixTimeToEastern]
(@unixtime bigint)
returns datetime
as
begin
declare @easterndatetime datetime
declare @interimdatetime datetime = dateadd(s, @unixtime/1000, '1970-01-01')
select @easterndatetime = dateadd(hour,case when @interimdatetime between begin_date and end_date then -4 else -5 end ,@interimdatetime)
from cfg_day_light_savings_time where year_date = datepart(year,@interimdatetime)
if @easterndatetime is null
select @easterndatetime= dateadd(hour, -4, @interimdatetime)
return @easterndatetime
end
Centrale
create function [dbo].[UnixTimeToCentral]
(@unixtime bigint)
returns datetime
as
begin
declare @centraldatetime datetime
declare @interimdatetime datetime = dateadd(s, @unixtime/1000, '1970-01-01')
select @centraldatetime = dateadd(hour,case when @interimdatetime between begin_date and end_date then -5 else -6 end ,@interimdatetime)
from cfg_day_light_savings_time where year_date = datepart(year,@interimdatetime)
if @centraldatetime is null
select @centraldatetime= dateadd(hour, -5, @interimdatetime)
return @centraldatetime
end
montagne
create function [dbo].[UnixTimeToMountain]
(@unixtime bigint)
returns datetime
as
begin
declare @mountaindatetime datetime
declare @interimdatetime datetime = dateadd(s, @unixtime/1000, '1970-01-01')
select @mountaindatetime = dateadd(hour,case when @interimdatetime between begin_date and end_date then -6 else -7 end ,@interimdatetime)
from cfg_day_light_savings_time where year_date = datepart(year,@interimdatetime)
if @mountaindatetime is null
select @mountaindatetime= dateadd(hour, -6, @interimdatetime)
return @mountaindatetime
end
Hawaii
create function [dbo].[UnixTimeToHawaii]
(@unixtime bigint)
returns datetime
as
begin
declare @hawaiidatetime datetime
declare @interimdatetime datetime = dateadd(s, @unixtime/1000, '1970-01-01')
select @hawaiidatetime = dateadd(hour,-10,@interimdatetime)
from cfg_day_light_savings_time where year_date = datepart(year,@interimdatetime)
return @hawaiidatetime
end
Arizona
create function [dbo].[UnixTimeToArizona]
(@unixtime bigint)
returns datetime
as
begin
declare @arizonadatetime datetime
declare @interimdatetime datetime = dateadd(s, @unixtime/1000, '1970-01-01')
select @arizonadatetime = dateadd(hour,-7,@interimdatetime)
from cfg_day_light_savings_time where year_date = datepart(year,@interimdatetime)
return @arizonadatetime
end
Alaska
create function [dbo].[UnixTimeToAlaska]
(@unixtime bigint)
returns datetime
as
begin
declare @alaskadatetime datetime
declare @interimdatetime datetime = dateadd(s, @unixtime/1000, '1970-01-01')
select @alaskadatetime = dateadd(hour,case when @interimdatetime between begin_date and end_date then -8 else -9 end ,@interimdatetime)
from cfg_day_light_savings_time where year_date = datepart(year,@interimdatetime)
if @alaskadatetime is null
select @alaskadatetime= dateadd(hour, -8, @interimdatetime)
return @alaskadatetime
end
C'est mieux? Cette fonction convertit unixtime en millisecondes en datetime. Il a perdu des millisecondes, mais reste très utile pour le filtrage.
CREATE FUNCTION [dbo].[UnixTimestampToGMTDatetime]
(@UnixTimestamp bigint)
RETURNS datetime
AS
BEGIN
DECLARE @GMTDatetime datetime
select @GMTDatetime =
CASE
WHEN dateadd(ss, @UnixTimestamp/1000, '1970-01-01')
BETWEEN
Convert(DATETIME, Convert(VARCHAR(4), Year(dateadd(ss, @UnixTimestamp/1000, '1970-01-01') )) + '-03-' + Convert(VARCHAR(2), (31 - (5 * Year(dateadd(ss, @UnixTimestamp/1000, '1970-01-01') )/4 + 4) % 7)) + ' 01:00:00', 20)
AND
Convert(DATETIME, Convert(VARCHAR(4), Year(dateadd(ss, @UnixTimestamp/1000, '1970-01-01') )) + '-10-' + Convert(VARCHAR(2), (31 - (5 * Year(dateadd(ss, @UnixTimestamp/1000, '1970-01-01') )/4 + 1) % 7)) + ' 02:00:00', 20)
THEN Dateadd(hh, 1, dateadd(ss, @UnixTimestamp/1000, '1970-01-01'))
ELSE Dateadd(hh, 0, dateadd(ss, @UnixTimestamp/1000, '1970-01-01'))
END
RETURN @GMTDatetime
END
L'ajout de n secondes à 1970-01-01
vous donnera un date UTC parce que n , l'horodatage Unix, est le nombre de secondes qui se sont écoulées depuis 00:00:00 temps universel coordonné (UTC), jeudi, 1er janvier 1970 .
dans SQL Server 2016, vous pouvez convertir un fuseau horaire en un autre en utilisant AT TIME ZONE
. Vous avez juste besoin de connaître le nom du fuseau horaire dans Windows format standard:
SELECT *
FROM (VALUES (1514808000), (1527854400)) AS Tests(UnixTimestamp)
CROSS APPLY (SELECT DATEADD(SECOND, UnixTimestamp, '1970-01-01') AT TIME ZONE 'UTC') AS CA1(UTCDate)
CROSS APPLY (SELECT UTCDate AT TIME ZONE 'Pacific Standard Time') AS CA2(LocalDate)
| UnixTimestamp | UTCDate | LocalDate |
|---------------|----------------------------|----------------------------|
| 1514808000 | 2018-01-01 12:00:00 +00:00 | 2018-01-01 04:00:00 -08:00 |
| 1527854400 | 2018-06-01 12:00:00 +00:00 | 2018-06-01 05:00:00 -07:00 |
ou tout simplement:
SELECT *, DATEADD(SECOND, UnixTimestamp, '1970-01-01') AT TIME ZONE 'UTC' AT TIME ZONE 'Pacific Standard Time'
FROM (VALUES (1514808000), (1527854400)) AS Tests(UnixTimestamp)
| UnixTimestamp | LocalDate |
|---------------|----------------------------|
| 1514808000 | 2018-01-01 04:00:00 -08:00 |
| 1527854400 | 2018-06-01 05:00:00 -07:00 |
Notes:
- vous pouvez supprimer les informations relatives au fuseau horaire en remplaçant
DATETIMEOFFSET
parDATETIME
. - la conversion tient compte de l'heure avancée. L'heure du Pacifique était UTC-08: 00 en janvier 2018 et UTC-07:00 en juin 2018.