How To Convert Datetime From Varchar To Datetime

Sep 11, 2007

hi,
How do i convert a varchar field into the datetime data type? the reason i need this lies in the requirement that in the earlier data base the column that is hlding the date value is having the data type as varchar. and in the new design the column data type is datetime. i am using sql scripts for the data migration from the older design to the newer and got stuck with this datetime convertion issue. do let me know the best possible solution.

following are the sample data that is theer in the older table for the date.


12/12/2003
1/13/2007
01132004
1-1-2004
1.2.2001



there is no uniformity of the data that is stored currently.



thnkx in adv.
rahul jha

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Convert Varchar To Datetime!!!

Apr 20, 2005

Hi:
I have a column call Date_Sent (28/02/2004)(dd/mm/yyyy) format as varchar at beginning. I want to convert to other column as datetime. 
I use Query like:
SELECT
CAST(SUBSTRING(Date_Sent,1,2)as int) + '/' +CAST(SUBSTRING(date_sent,4,2) as int) + '/' +CAST(SUBSTRING(DATE_SENT,7,4) as int)
From MyTable
It is not working, anybody can give me some advise!
thanks!
 
 

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Will Varchar Automatic Convert Into Datetime ?

Aug 8, 2006

hi, good day, if i have a table as follow:

Create table test
(
student_name varchar(20),
student id varchar(20),
register_dt varchar(50)
)


and insert data like


insert into test values('rebecca','0001','2006-08-08 12:15:03')


after all , i would like to query the data and insert into another table say data_tbl where it define as follow

Create table data_tbl
(

student_name varchar(20),
student id varchar(20),
register_dt datetime
)


would the test table regiter_dt auto convert into datetime format or we need to convert it before insert into data_tbl table?

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May 27, 2008

Hi All,

I have a table called Table1 with a field Date (varchar type). The records are like this;

05/21/08
07/02/08
06/04/08
06/10/08


I want to convert the above into datetime (yyyy-mm-dd format)....in the above example my output should be;

2008-05-21
2008-07-02
2008-06-04
2008-06-10

How can i do this?

Please help.

Zee...

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Jun 19, 2014

I have a column on my table with the varchar(50) datatype. The whole column has the value 2014-04-31

I want to Convert the varchar(50)datatype to datetime datatype.

The table name is called - dbo.pracs

the column name is - LastDatUpaded

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Dec 14, 2007

I have this procedure and it can't convert this date to datetime type:

Exec scnr.prc_tblScannersReemplazarClasificacion
'CERVEZA ',
'CERVEZA',
'ENV VAC ',
'ENVASE VACIO',
'NULL',
'NO aplica',
'NULL',
'NO aplica',
'1-8-2007',
'10-12-2007',
'ISCRacajina';

and after that i tried to execute it, but I changed the date like next:

Exec scnr.prc_tblScannersReemplazarClasificacion
'CERVEZA ',
'CERVEZA',
'ENV VAC ',
'ENVASE VACIO',
'NULL',
'NO aplica',
'NULL',
'NO aplica',
'8-1-2007',
'12-10-2007',
'ISCRacajina';

and the procedure reseive this parameter:

CREATE PROCEDURE scnr.prc_tblScannersReemplazarClasificacion(@tipoclasificacion varchar(200),
@categoriaV varchar(200),
@categoriaN varchar(200),
@subcategoriaV varchar(200),
@subcategoriaN varchar(200),
@tipoV varchar(200),
@tipoN varchar(200),
@subtipoV varchar(200),
@subtipoN varchar(200),
@fechascanner datetime,
@fechaingreso datetime,
@usuarioscanner varchar(200) )


The error is:
Msg 8114, Level 16, State 5, Procedure prc_tblScannersReemplazarClasificacion, Line 0
Error converting data type varchar to datetime.

Why can't this procedure reseive these dates?
What can I do?

Help me...

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Ho To Convert Varchar Datatype Into Datetime

Aug 22, 2007




declare @a varchar(10)
select @a= shiftstarttime from o_parameter
print @a

declare @b varchar(10)
select @b= shiftendtime from o_parameter
print @b


declare @dt varchar(20)
set @dt=Left(getdate(),12)

print @dt

declare @dt1 varchar(20)
set @dt1=Left(dateadd(dd, 1,getdate()),12)
print @dt1

declare @dt3 varchar(20)

set @dt3= @dt1 + space(0) + @a

print @dt3

declare @dt4 varchar(20)

set @dt4= @dt + space(0) + @b

print @dt4




output of above script is as fallow
09.30am
06.30pm
Aug 22 2007
Aug 23 2007
Aug 23 2007 09.30am
Aug 22 2007 06.30pm

now i want to convert @dt3 and @dt4 into datetime .

because i wnat to calculate datedifference in hours by using this function
SET @in_hour=DATEDIFF (HH ,@D1,@D2)

where @D1 and @D2 are datetime parameters.

but how can i get @dt3 and @dt4 into datetime so i can pass it to DATEDIFF() function.

so plz Guide me. or if u know how to write it then plz write here

i already use cast for it but it doesn't work.

so plz reply urgently.








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Jul 22, 2005

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Result:
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My expected result:
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Have you encountered this problem before? Is it related to the SQL server setting? Please help and thank you in advance.

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Sep 17, 2007



Hi,

I wanted to convert the varchar to date time and here is what i am doing


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SET @dt = '20070111' -- YYYYMMDD format

select CONVERT(datetime, @dt, 120)


This works perfectly fine and the result would be- 2007-01-11 00:00:00.000

But if i changed my datetime format from YYYYMMDD to YYYYMMDDHHMM then this is failing and throwing

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~Mohan

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Oct 23, 2007



Hi,


I'm facing a small issue with date conversions. It would have been great if someone could help me out. I have a field in my database (SQL Server 2000) called SavDateTime of type varchar(50). I store dates in this field in the format "dd/MM/yy hh:mms". A sample date would be "23/10/2007 10:15:30 AM". Now I need to have an order by for this field, say like,


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Mar 13, 2008

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create table #temp2 (
d datetime
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insert into #temp1(d)
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insert into #temp2(d)
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--works fine-------------------------------
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-------------------------------------------



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-------------------------------------------

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Code:

Declare
,@CodePair varchar(10
,@CodePairTimeDiff dec ,
@tmpTimeVar datetime ,
@tmpTimeCharVar varchar(30)


IF @NextStatusDate IS NOT NULL AND @StatusDate IS NOT NULL
BEGIN
set @tmpTimeCharVar = DATEDIFF(SECOND, @NextSTatusDate, @StatusDate)
set @tmpTimeVar =
(
CASE WHEN @tmpTimeCharVar/3600<10 THEN '0' ELSE '' END
+ RTRIM(DATEDIFF(SECOND,@NextSTatusDate, @StatusDate)/3600)
+ ':' + RIGHT('0'+RTRIM((@tmpTimeCharVar % 3600) / 60),2)
+ ':' + RIGHT('0'+RTRIM((@tmpTimeCharVar % 3600) % 60),2)
)
END
IF @@ERROR <>0
PRINT 'ERR dates' + Convert(varchar(20), @NextStatusDate) + '.'


inside update statement

,CodePairTimeDiff = CONVERT(dec, (100 * DATEPART(HOUR, @tmpTimeVar)
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