Please Help! Converting From Unix Time
Nov 1, 1999I have a date field from a Unix machine (ex. 917478174). I need to convert this date to 1/1/1999.
Any help?
Thanks!
-aw
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UNIX Time Conversion Functions
May 28, 2006A common problem in moving data between SQL Server and UNIX systems is converting to/from the SQL Server datetime format to the UNIX time format.
There are several UNIX time formats, but the most common is a signed 32-bit integer that represents time as the number of seconds between 1970-01-01 00:00:00 and a given time. The functions in the script can be use to convert between SQL Server datetime and this UNIX time format.
For more information on UNIX Time, please read this link:
http://en.wikipedia.org/wiki/Unix_time
For more information about SQL Server date/time conversions, refer to this link:
Date/Time Info and Script Links
http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=64762
The conversion of UNIX Time to SQL Server datetime is fairly trivial using the SQL Server DATEADD function, and this is the logic used by the F_UNIX_TIME_TO_DATETIME function in the script:
declare @UNIX_TIME int
select @UNIX_TIME = 1111111111
-- Using dateadd to add seconds to 1970-01-01
select [Datetime from UNIX Time] = dateadd(ss,@UNIX_TIME,'1970-01-01')
Results:
Datetime from UNIX Time
------------------------------------------------------
2005-03-18 01:58:31.000
(1 row(s) affected)
The conversion of SQL Server datetime to UNIX Time is more complex. SQL Server datetime is accurate to milliseconds so is necessary to either truncate or round off the time to a whole second. The function in the F_DATETIME_TO_UNIX_TIME script rounds the time down if milliseconds is less than 500 and up otherwise. A second problem is that UNIX Time is an integer, so it can only represent time from 1901-12-13 20:45:52 through 2038-01-19 03:14:07. The range of SQL Server datetime is 1753-01-01 through 9999-12-31, so the function in the script has logic to return a NULL if the datetime is outside the valid UNIX Time range. Another minor issue is that the SQL Server DATEDIFF function will not cover the full range of an integer value with seconds, so it is necessary to have additional logic in the function do cover the time from 1901-12-13 20:45:52 to 1901-12-14 00:00:00.
The function names created by this script are:
dbo.F_DATETIME_TO_UNIX_TIME( @DAY )
dbo.F_UNIX_TIME_TO_DATETIME( @UNIX_TIME )
The script also includes code to test and demo the functions.
if objectproperty(object_id('dbo.F_DATETIME_TO_UNIX_TIME'),'IsScalarFunction') = 1
begin drop function dbo.F_DATETIME_TO_UNIX_TIME end
go
create function dbo.F_DATETIME_TO_UNIX_TIME
( @DAY datetime )
returns int
as
/*
Function: F_DATETIME_TO_UNIX_TIME
Finds UNIX time as the difference in seconds between
1970-01-01 00:00:00 and input parameter @DAY after
rounding @DAY to the neareast whoie second.
Valid datetime range is 1901-12-13 20:45:51.500 through
2038-01-19 03:14:07.497. This range is limited to the smallest
through the largest possible integer.
Datetimes outside this range will return null.
*/
begin
declare @wkdt datetime
-- Return null if outside of valid UNIX Time range
if @DAY < '1901-12-13 20:45:51.500' or @DAY > '2038-01-19 03:14:07.497'
return null
-- Round off datetime to nearest whole second
select @wkdt = dateadd(ms,round(datepart(ms,@DAY),-3)-datepart(ms,@DAY),@DAY)
-- If date GE 1901-12-14
if @wkdt >= 712return datediff(ss,25567,@wkdt)
-- Handles time GE '1901-12-13 20:45:52.000 and LT 1901-12-14
return -2147472000-datediff(ss,@wkdt,712)
end
go
if objectproperty(object_id('dbo.F_UNIX_TIME_TO_DATETIME'),'IsScalarFunction') = 1
begin drop function dbo.F_UNIX_TIME_TO_DATETIME end
go
create function dbo.F_UNIX_TIME_TO_DATETIME
( @UNIX_TIME int )
returns datetime
as
/*
Function: F_UNIX_TIME_TO_DATETIME
Converts UNIX time represented as the difference
in seconds between 1970-01-01 00:00:00 to a datetime.
Any valid integer -2,147,483,648 through 2,147,483,647
can be converted to datetime.
*/
begin
return dateadd(ss,@UNIX_TIME,25567)
end
go
go
/*
Demo functions F_DATETIME_TO_UNIX_TIME and
F_UNIX_TIME_TO_DATETIME by converting a datetime
to UNIX time and back to datetime.
*/
select
[Input Datetime] = convert(varchar(23),DT,121),
[UNIX Time] = dbo. F_DATETIME_TO_UNIX_TIME(a.dt),
[Datetime from UNIX Time] =
-- Convert datetime to UNIX time an back to Datetime
convert(varchar(23),
dbo. F_UNIX_TIME_TO_DATETIME(dbo. F_DATETIME_TO_UNIX_TIME(a.dt)),121),
Note = .a.note
from
(
selectDT = getdate(),
Note = 'Current date'
union all
selectDT = dateadd(ms,500,getdate()),
Note = 'Current date + 500 ms'
union all
selectDT = dateadd(ms,750,getdate()),
Note = 'Current date + 750 ms'
union all
selectDT = '1901-12-13 20:45:51.500',
Note = 'Earliest datetime function can convert'
union all
selectDT = '2038-01-19 03:14:07.497',
Note = 'Last datetime function can convert'
union all
selectDT = '2001-09-09 01:46:40',
Note ='UNIX time 1000000000'
union all
selectDT = '2005-03-18 01:58:31',
Note = 'UNIX time 1111111111'
union all
selectDT = '2009-02-13 23:31:30',
Note ='UNIX time 1234567890'
union all
selectDT = '1901-12-14 00:00:00.000',
Note = 'Date time dateadd second limit'
union all
selectDT = '1901-12-13 23:59:59.000',
Note = 'Date time dateadd outside second limit'
union all
selectDT = '1901-12-13 20:45:51.497',
Note = 'Date time function cannot convert - low end'
union all
select
DT = '2038-01-19 03:14:07.500',
Note = 'Date time function cannot convert - high end'
union all
select
DT = '1753-01-01 00:00:00.000',
Note = 'Min Datetime'
union all
select
DT = '9999-12-31 23:59:59.997',
Note = 'Max Datetime'
) a
Results:
Input Datetime UNIX Time Datetime from UNIX Time Note
----------------------- ----------- ----------------------- --------------------------------------------
2006-05-29 23:34:11.517 1148945652 2006-05-29 23:34:12.000 Current date
2006-05-29 23:34:12.017 1148945652 2006-05-29 23:34:12.000 Current date + 500 ms
2006-05-29 23:34:12.267 1148945652 2006-05-29 23:34:12.000 Current date + 750 ms
1901-12-13 20:45:51.500 -2147483648 1901-12-13 20:45:52.000 Earliest datetime function can convert
2038-01-19 03:14:07.497 2147483647 2038-01-19 03:14:07.000 Last datetime function can convert
2001-09-09 01:46:40.000 1000000000 2001-09-09 01:46:40.000 UNIX time 1000000000
2005-03-18 01:58:31.000 1111111111 2005-03-18 01:58:31.000 UNIX time 1111111111
2009-02-13 23:31:30.000 1234567890 2009-02-13 23:31:30.000 UNIX time 1234567890
1901-12-14 00:00:00.000 -2147472000 1901-12-14 00:00:00.000 Date time dateadd second limit
1901-12-13 23:59:59.000 -2147472001 1901-12-13 23:59:59.000 Date time dateadd outside second limit
1901-12-13 20:45:51.497 NULL NULL Date time function cannot convert - low end
2038-01-19 03:14:07.500 NULL NULL Date time function cannot convert - high end
1753-01-01 00:00:00.000 NULL NULL Min Datetime
9999-12-31 23:59:59.997 NULL NULL Max Datetime
(14 row(s) affected)
Edit: Fixed minor bug that caused an overflow, instead of returning NULL, if input to function F_DATETIME_TO_UNIX_TIME was >= 9999-12-31 23:59:59.500.
CODO ERGO SUM
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o/p
indate 04/18/2015
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Please advise. Thanks.
Best.
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Error Help File:sqldts80.hlp
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declare @a datetime
declare @b varchar(10)
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Server: Msg 242, Level 16, State 3, Line 5
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SELECT Person_Name.PerNam_Person_Name_PK ,
Person_Name.PerNam_Row_Status ,
Person_Name.PerNam_Last_Name_Sndx ,
Person_Name.PerNam_Last_Name ,
Person_Name.PerNam_Name_Suffix ,
Person_Name.PerNam_First_Name ,
Person_Name.PerNam_Name_Prefix ,
Person_Name.PerNam_Middle_Name ,
Person_Name.PerNam_Event_Person_FK ,
Event.Evn_Event_Nbr ,
Event.Evn_Event_Type ,
Event_Person.EvnPer_Last_Name ,
Event_Person.EvnPer_First_Name ,
Event_Person.EvnPer_Middle_Name ,
Event_Person.EvnPer_Name_Prefix ,
Event_Person.EvnPer_Name_Suffix
FROM Person_Name , Event , Event_Person
WHERE (Person_Name.PerNam_Agency_ID = "CL")
AND ( Person_Name.PerNam_Event_Person_FK = Event_Person.EvnPer_Event_Person_PK )
and ( Event_Person.EvnPer_Event_FK = Event.Evn_Event_PK )
and (Person_Name.PerNam_Person_Name_PK = 0 or ( Person_Name.PerNam_Event_Person_FK = 581541) )
and ( Person_Name.PerNam_Row_Status <> "D" )
Query plan in SQL 6.5
SQL Server Execution Times:
cpu time = 0 ms. elapsed time = 31250 ms.
STEP 1
The type of query is INSERT
The update mode is direct
Worktable created for REFORMATTING
FROM TABLE
Person_Name
Nested iteration
Index : PK_Person_Name
FROM TABLE
Person_Name
Nested iteration
Index : PerNam_Event_Person_FK
FROM TABLE
Person_Name
Nested iteration
Using Dynamic Index
FROM TABLE
Event_Person
Nested iteration
Index : PK_Event_Person
TO TABLE
Worktable 1
STEP 2
The type of query is SELECT
FROM TABLE
Worktable 1
Nested iteration
Table Scan
FROM TABLE
Event
Nested iteration
Index : PK_Event
SQL Server Parse and Compile Time:
cpu time = 0 ms.
Table: Person_Name scan count 2, logical reads: 6, physical reads: 5, read ahead reads: 0
Table: Event scan count 0, logical reads: 0, physical reads: 0, read ahead reads: 0
Table: Event_Person scan count 0, logical reads: 0, physical reads: 0, read ahead reads: 0
Table: Worktable scan count 0, logical reads: 0, physical reads: 0, read ahead reads: 0
Table: Worktable scan count 1, logical reads: 1, physical reads: 0, read ahead reads: 0
SQL Server Execution Times:
cpu time = 0 ms. elapsed time = 62 ms.
Query plan on SQL 7.0
SQL Server parse and compile time:
CPU time = 431 ms, elapsed time = 535 ms.
.................
Table 'Event'. Scan count 1, logical reads 3, physical reads 3, read-ahead reads 0.
Table 'Event_Person'. Scan count 1, logical reads 6, physical reads 5, read-ahead reads 0.
Table 'Person_Name'. Scan count 1, logical reads 4588, physical reads 2, read-ahead reads 4092.
SQL Server Execution Times:
CPU time = 7921 ms, elapsed time = 13519 ms.
SQL Server Execution Times:
CPU time = 0 ms, elapsed time = 13781 ms.
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DECLARE @EndDate AS varchar(30)
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[code]....
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conversion failed when converting date and or time from character string
I am using Sql Server 2008.(database designed for sql 2005 later moved to sql server 2008).
Pickup_time and actual_Pickup_time are varchar(5) in database.
What is wrong with this query?
Query:
SELECT COUNT(Trip_ID) AS OntimePickupCount
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This code has been in place for years...and we stick the date on later from another column.
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I would like to convert a UTC datetime value to any Local Time Zone. Below is some code I'm trying to ensure works correctly. Anyone care to comment?
I have used the following lines before the function to obtain the 2nd parameter:
SELECT GETUTCDATE()
SELECT GETDATE()
SELECT DATEDIFF(hh,'2008-05-20 20:08:01.020', '2008-05-20 16:08:01.020')
DECLARE @UTC DATETIME
EXECUTE @UTC = UTCtoLocalDate '2008-05-20 20:08:01.020', -4
-- =============================================
-- Description: <Converts local datetime values to UTC datetime values, using the built-in GETUTCDATE() function.
-- <Parameter two (@TZ) represents the time zone difference from UTC/GMT. To obtain this value
-- <run GETUTCDATE() and GETDATE(), then determine the timezone from the difference between the two.>
-- =============================================
CREATE FUNCTION [dbo].[UTCtoLocalDate] (@UTCDate DATETIME, @TZ INT)
RETURNS DATETIME AS
BEGIN
IF ( DATEPART(hh, @UTCDate) <> 0 )
BEGIN
DECLARE @LocalDate DATETIME
DECLARE @UTCDelta INT
DECLARE @thisYear INT
DECLARE @DSTDay INT
DECLARE @NormalDay INT
DECLARE @DSTDate DATETIME
DECLARE @NormalDate DATETIME
SET @thisYear = YEAR(@UTCDate)
IF (@thisYear < 2007 )
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SET @DSTDay = ( 2 + 6 * @thisYear - FLOOR(@thisYear / 4) ) % 7 + 1
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SET @DSTDate = '4/' + CAST(@DSTDay AS VARCHAR(2)) + '/' + CAST(@thisYear AS VARCHAR(4)) + ' 2:00:00.000 AM'
SET @NormalDate = '10/' + CAST(@NormalDay AS VARCHAR(2)) + '/' + CAST(@thisYear AS VARCHAR(4)) + ' 2:00:00.000 AM'
END
ELSE
BEGIN
SET @DSTDay = ( 14 - ( FLOOR( 1 + @thisYear * 5 / 4 ) ) % 7 )
SET @NormalDay = ( 7 - ( FLOOR ( 1 + @thisYear * 5 / 4) ) % 7 )
SET @DSTDate = '3/' + CAST(@DSTDay AS VARCHAR(2)) + '/' + CAST(@thisYear AS VARCHAR(4)) + ' 2:00:00.000 AM'
SET @NormalDate = '11/' + CAST(@NormalDay AS VARCHAR(2)) + '/' + CAST(@thisYear AS VARCHAR(4)) + ' 2:00:00.000 AM'
END
IF ((@UTCDate > @DSTDate) AND (@UTCDate < @NormalDate))
BEGIN
SET @UTCDelta = @TZ + 1
END
ELSE
BEGIN
SET @UTCDelta = @TZ
END
-- now convert utc date to local date
SET @LocalDate = DATEADD(Hour, @UTCDelta, @UTCDate)
END
ELSE
BEGIN
SET @LocalDate = @UTCDate
END
RETURN(@LocalDate)
END
GO
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I have a column which is current stored as nvarchar(10), and all of the enteries are either NULL or mm/dd/yyyy.
I am trying to convert the column to smalldatetime using CONVERT or CAST and each time I get an arithmetic overflow error message.
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[OLE DB Destination [90]] Error: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005.
An OLE DB record is available. Source: "Microsoft SQL Server Native Client 10.0" Hresult: 0x80004005 Description: "Invalid date format".
[OLE DB Destination [90]] Error: There was an error with input column "Date" (138) on input "OLE DB Destination Input" (103). The column status returned was: "Conversion failed because the data value overflowed the specified type.".
CURSOR - Conversion Failed When Converting Date And / Or Time From Character String
May 15, 2015This is my code and I don't know why this error keeps coming out : PS : I did cursor to execute query.Th error showed is bold:
DECLARE RegCreatedDate CURSOR FOR
SELECT DISTINCT (CONVERT(NVARCHAR,CreatedDate,103))
FROM CA_Registration WHERE Month(CreatedDate)= @paMonthIn AND YEAR(CreatedDate)=@paYearIn
OPEN RegCreatedDate
FETCH NEXT FROM RegCreatedDate INTO @RegCreatedDate
WHILE @@FETCH_STATUS = 0
[Code] ....
Select Only - Conversion Failed When Converting Date And / Or Time From Character String
Sep 4, 2015I'm trying to select only July from show_held but I keep on getting the error message saying:
Conversion failed when converting date and/or time from character string.
I get error message after I write this code:
ANDshow.show_held = '&July&'
As you can see from the below code, How do I select July from times_held_in_July?
SELECTevent_name,
DATENAME (MONTH, show_held) AS times_held_in_July
FROMevent,
show
WHEREevent.show_id = show.show_id
Result:
event_name times_held_in_July
DressageJuly
Jumping July
Led in July
Led in September
Led in May
DressageApril
DressageJuly
Flag and PoleJuly
SELECTevent_name,
DATENAME (MONTH, show_held) AS times_held_in_July
FROMevent,
show
WHEREevent.show_id = show.show_id
ANDshow.show_held = '&July&'
Result:
Msg 241, Level 16, State 1, Line 24
Conversion failed when converting date and/or time from character string.
DB Design :: Conversion Failed When Converting Date And / Or Time From Character String
Sep 14, 2015BEGIN TRAN;
INSERT INTO [dbo].[QuestManualProcess]
([ProcessFromDate]
,[LastProcessedFileDateStamp]
,[ProcessedOnDate]
[code]....
Conversion failed when converting date and/or time from character string/
Record Count - Conversion Failed When Converting Date And / Or Time From Character String
Sep 26, 2014I am trying to write a stored procedure that loops through the list of user tables, gets the record count for each one and write a record to an audit table with DATE, TABLENAME, RECORDCOUNT.I keep getting an error "Conversion failed when converting date and/or time from character string".Here is the script...
DECLARE @table nvarchar(500)
DECLARE @sql nvarchar(520)
DECLARE CursorSelect CURSOR FOR
select table_name from INFORMATION_SCHEMA.tables where table_name not like 'sys%' order by table_name
[code]....
Transact SQL :: Error - Conversion Failed When Converting Date And / Or Time From Character String
Nov 16, 2015I've imported a CSV file into a table in SQL Server 2012. It's a large file, 140,000+ rows, so I couldn't covert it to Excel first to preserve the date format due to Excel's row limit. In the CSV file, there were 3 column with date data in "31-Aug-09" format, and the import automatically transformed these in "31AUG09" format (varchar(50)) in SQL Server. Now I need to convert these 3 columns from varchar to datetime so I could work with them in date format.
I've tried several things,e.g,
select
convert(datetime,
right(admdate,4)+left(admdate,2)+substring(admdate,3,3))
or
select
convert(datetime,
substring(admdate,6,4)+substring(admdate,1,2)+substring(admdate,3,3))
but keep getting the same error message (Msg 241) "Conversion failed when converting date and/or time from character string".