Converting varchar field to date

I got a varchar field in DB with format YYYY/MM/DD HH:MI:SS in DB . I want to convert this to date field in RPD. When I did
CAST ( VarChar field AS DATE) in RPD it is not working I am getting sql error.
Thanks for your help.

Hi,
can you try once to cast your char as a timestamp.
Hope that works.
Kr,
A

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Converting float fields to date Time

I have an application that stores datetimes into float fields, the data is formatted yyyymmddhhmmss or 20081122091030. I need to convert this data to a datetime data type so I can do datetime calculations (differences) for reporting purposes. It would be preferable to have the data formatted yyyy/mm/dd hh:mms. I have tried numerous methods with out success. As I understand it I need to CONVERT to a VARCHAR first. I am new to TSQL & this one turning out to be a knotty problem so I would really appreciate anyone’s assistance,
SELECT (
LEFT(CAST(IS_DUE_DATE AS VARCHAR(14)),8) + ' ' +
    SUBSTRING(CAST(IS_DUE_DATE AS VARCHAR(14)),9,2) + ':' +
    SUBSTRING(CAST(IS_DUE_DATE AS VARCHAR(14)),11,2) + ':' +
    SUBSTRING(CAST(IS_DUE_DATE AS VARCHAR(14)),13,2))
FROM ISSUES
However when I try to Covert to DATETIME it all goes pear shaped.

Try this
Code Snippet
DECLARE @MyDate float
SET @MyDate = 20090922112143997
SELECT CONVERT(DATETIME,
LEFT(CAST(CAST(@MyDate as BigInt) as varchar(20)),8)+' '+
SUBSTRING(CAST(CAST(@MyDate as BigInt) as varchar(20)),9,2)+':'+
SUBSTRING(CAST(CAST(@MyDate as BigInt) as varchar(20)),11,2)+':'+
SUBSTRING(CAST(CAST(@MyDate as BigInt) as varchar(20)),13,2) + '.' +
SUBSTRING(CAST(CAST(@MyDate as BigInt) as varchar(20)),15,3)
Added using a temp table:
Code Snippet
CREATE TABLE #T
fdate float
go
INSERT INTO #T VALUES (20090922112143997)
INSERT INTO #T VALUES (20090921182143997)
INSERT INTO #T VALUES (20090921012323997)
SELECT CONVERT(DATETIME,
LEFT(CAST(CAST(fdate as BigInt) as varchar(20)),8)+' '+
SUBSTRING(CAST(CAST(fdate as BigInt) as varchar(20)),9,2)+':'+
SUBSTRING(CAST(CAST(fdate as BigInt) as varchar(20)),11,2)+':'+
SUBSTRING(CAST(CAST(fdate as BigInt) as varchar(20)),13,2) + '.' +
SUBSTRING(CAST(CAST(fdate as BigInt) as varchar(20)),15,3)
FROM #T
DROP TABLE #T

MS Excel automatically converts numeric fields to date format

I have at least 2 different spreadsheets where this happens. I maintain them for months, adding, changing, deleting data. They contain lots of data elements (numeric, text, date, etc). Some columns are all numeric, some all dates,
etc. Then suddenly when I open the spreadsheet, my numeric formatted data has been converted to date format. I see lots of # signs in cells, which is an indication that this happened, and selecting an affected cell shows a date, generally in the
early 1900s, depending on the original numeric value that was in the cell. I convert the fields back to numeric, but sometime later the same problem occurs -- numeric fields are now date formatted. I cannot identfy any specific change that I make
that would cause this. And I only recognize it as having occurred when I open the spreadsheet, not anytime during its maintenance. I am using MS Excel 2007 SP2 in a Windows XP SP3 environment. The machine is well maintained and updated /
kept current by our corporate IT group. I have done numerous Internet searches and cannot find anything like this in any other blog. Thanks for your help.

Hi,
Were some of the these data imported from a .csv file? As far as I know, data formats cannot be saved in .csv file. If this is the situation, try this:
Save a copy of your .csv file changing the extension of your file from .csv to .txt
open excel.
go to DATA --> Import external data --> Import data --> browse to find the .txt file you made earlier
The text import wizard should open.
Click on delimited, click next
click comma, click next
You should now see all columns appear with heading GENERAL --> highlight the columns with the values that are changing to date and click TEXT (top right) instead. The heading of these columns should now change to TEXT.
click finish
Excel will now treat the column as text when it imports the data and will not change them to dates
If this is not the situation, this issue might be caused by some add-ins.
Start Excel in safe mode: Press and hold the
CTRL key, and then click the Excel program to start. Then, click File > Open to open the Excel file.
If the problem does not occur in the safe mode, this issue might be related to some third-party add-ins in the Office program, we can try to disable them.
Best Regards,
Sally Tang

Convert varchar2 field into date formatted: DD-MON-YYYY

Thanks in advance for anyone's help on this matter as I know it takes your time and expertise. I am pretty new to SQL but learning my way through it just have an issue with a text to date field conversion. It is an Oracle 10g database and I am writing in SQL. There is a field called Demand which is formatted in varchar2 format of ddmmyy. There is also a field that is formatted as a date called Payment which is formatted as DD-MON-YYYY.
Essentially I need to do a simple Payment >= Demand, however as you can see that is some issue with that being a varchar2 field. Does anyone know if it is possible to do that type of expression against those two fields. Was thinking about possibly converting the varchar2 to a date but not sure how to get to that DD-MON-YYYY format.
Also there are situations where this Demand field will often times be null as it would have never recieved any outbound correspondence in the past and would not have a date at all.
Thanks
Edited by: user10860766 on Aug 18, 2009 8:14 AM
Edited by: user10860766 on Aug 18, 2009 8:19 AM

Hi,
It's hard to detect bad dates in pure SQL, especially if you need to be precise about when February 29 is valid.
It's easy with a user-define function, like the one in [this thread|http://forums.oracle.com/forums/thread.jspa?messageID=3669932&#3669932].
Edited by: Frank Kulash on Aug 18, 2009 3:50 PM
To create a stand-alone function:
CREATE OR REPLACE FUNCTION     to_dt
(     in_txt          IN     VARCHAR2                    -- to be converted
,     in_fmt_txt     IN     VARCHAR2     DEFAULT     'DD-MON-YYYY'     -- optional format
,     in_err_dt     IN     DATE          DEFAULT     NULL
RETURN DATE
DETERMINISTIC
AS
BEGIN
     -- Try to convert in_txt to a DATE. If it works, fine.
     RETURN     TO_DATE (in_txt, in_fmt_txt);
EXCEPTION     -- If TO_DATE caused an error, then this is not a valid DATE: return in_err_dt
     WHEN OTHERS
     THEN
          RETURN in_err_dt;
END     to_dt
/To use it:
SELECT primary_key -- and/or other columns to identify the row
,       demand
FROM    table_x
WHERE   demand          IS NOT NULL
AND     to_dt ( demand
           , 'DDMMYY'
           )          IS NULL;

Convert varchar(20) date to date that looks like mm/dd/yyyy

Good afternoon,
I am a total novice at SQL and have been tasked to change a varchar(20) date column (shows up as m/dd/yy) to show up as mm/dd/yyyy. I've looked at the previous posts, but being a novice, it's difficult to wade through the non-applicable stuff. The column
that needs to be changed is field2, but I'm not sure how to construct a statement to reflect my objective.
Thank you in advance.

The sample uses a table variable. You can program it the same way for a table:
DECLARE @t TABLE (dt VARCHAR(20))
INSERT INTO @t
VALUES ('1/2/12')
,('3/10/10')
,('7/23/9')
,('aa')
,('12/31/99')
,('10/20/00')
,('10/20/01')
SET DATEFORMAT mdy
SELECT dt
,CONVERT(VARCHAR(10), CASE
WHEN isdate(dt) = 0
THEN NULL
ELSE cast(dt AS DATE)
END, 101) AS newDt
FROM @t;/******** TRY_CONVERT() method ************/
SELECT dt, newDt=CONVERT(varchar(10),TRY_CONVERT(date,dt),101) FROM @t;
GO
dt newDt
1/2/12 01/02/2012
3/10/10 03/10/2010
7/23/9 07/23/2009
aa NULL
12/31/99 12/31/1999
10/20/00 10/20/2000
10/20/01 10/20/2001
dt newDt
1/2/12 01/02/2012
3/10/10 03/10/2010
7/23/9 07/23/2009
aa NULL
12/31/99 12/31/1999
10/20/00 10/20/2000
10/20/01 10/20/2001
Starting with SQL Server 2012 you can use TRY_CONVERT().
You can start studying datetime functions here:
http://www.sqlusa.com/bestpractices/datetimeconversion/
Kalman Toth Database & OLAP Architect
T-SQL Scripts at sqlusa.com
New Book / Kindle: Exam 70-461 Bootcamp: Querying Microsoft SQL Server 2012

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Thanks Akshay,
Your suggestion worked right away and was probably the easiest of all. I tried the Function Module that Pravender suggested,
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Satyam might work too, but did not go there....!
Thanks to all of you.
Best..... SMaa

How to convert varchar to date datatype while insert or update in table

Hai All
I need to convert to varchar to date.
I have two Tables T1,T2
T1 Structure
Code varchar
Time varchar
Date varchar
T2 Structure
Empname var
Empcode var
Intime date
Outtime date
Intrin date
Introut date
Att_date
Now i need to move Time form T1 to T2 Intime,outtime,intrin,introut according some condition
So now i need to convert Varchar to Date while insert or update
I have tried something
Insert into T1 (code,intime,att_date)values
(code,To_date(Date||time,'dd-mon-yyyy hh24mi'),att_date);
OR While update
Update T2 set Outtime=To_date(Date||time,'dd-mon-yyyy hh24mi') where...
I got an error Ora-01861
Regards
Srikkanth.M

You didn't show any example of your date or time values, butyou might need to add a space between them, like
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Convert Varchar to Date

Hi
im trying to convert varchar to date.
So, i used To_date ( cilumn, 'DD-MM-YYYY') , Since i have to order the out put in Decending Order i used the same convertion function with Order by clause.
The problem is ... the out put is not ordered,
<sql>
select date_created
from
select distinct
to_date(created_date,'DD-MM-YYYY') as date_created
from schedule_backup
order by date_created desc
<sql>
out put is
=================
DATE_CREA
26-NOV-09
23-NOV-09
19-NOV-09
16-NOV-09
11-NOV-09
04-NOV-09
30-OCT-09
11-SEP-09
04-MAR-10
01-MAR-10
25-FEB-10
DATE_CREA
22-FEB-10
17-FEB-10
15-FEB-10
11-FEB-10
09-FEB-10
03-FEB-10
27-JAN-10
20-JAN-10
15-JAN-10
04-JAN-10
thanks
raj

Hi, Raj,
When you store dates in a VARCHAR2 column, you're asking for touble, so it seems that everything is working according to plan.
Even aside from that, your query works perfectly for me.
In the output you posted, the order is correct within each year, and you're only showing 2 digits of the year. Are you sure the centuries are right in the schedule_backup table? Perhaps everything that was supposed to be '2010' got enetereed as '1910' or '0010'.
Post some sample data (CREATE TABLE and INSERT statements) that gets the wrong results with your query.
For example:
CREATE TABLE schedule_backup
( created_date VARCHAR2 (10)
INSERT INTO schedule_backup (created_date) VALUES ('11-11-2009');
INSERT INTO schedule_backup (created_date) VALUES ('04-11-2009');
INSERT INTO schedule_backup (created_date) VALUES ('30-10-2009');
INSERT INTO schedule_backup (created_date) VALUES ('11-09-2009');
INSERT INTO schedule_backup (created_date) VALUES ('04-03-2010');
COMMIT;

Convert VARCHAR to date - don't know format in advance

Hi,
If I want to convert varchar to date, but I don't kniow the format of the varchar in advance. For example, it may be '20-MAY-99', '2009-01-10 10:01:00', but it is not known in advance. How can I convert it to date?
Many thanks

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Assuming you define a hierarchy of formats, you can write a function that tries each format in turn, i.e.
CREATE FUNCTION my_to_date( p_string IN VARCHAR2 )
RETURN DATE
IS
l_date_variable DATE;
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l_date_variable := to_date( p_string, <<format 1>> );
return l_date_variable;
EXCEPTION
WHEN OTHERS THEN
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      l_date_variable := to_date( p_string, <<format 2>> );
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How to convert varchar to date?

Hello everyone, I'm new to OBIEE and I'm running into a roadblock...
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In Oracle SQL would do this (I'm using XE):
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The original post is 4 years old - I am sure the poster must have figured it out by this time... obiee 11g supports a To_Datetime function though! thanks!

Convert Varchar to Smalldatetime

I have a staging table containing data imported from CSV using Log Parser. The imported 'TimeIndex' field datatype is varchar(255), and I plan on converting it to smalldatetime and inserting all of the data in the staging table into another.
The varchar holds the date in this format: 01/09/2014 03:31
I convert it using the following command:
SELECT CONVERT(smalldatetime,TimeIndex,103) AS TimeIndex
FROM [dbo].[My_Staging_Table]
But the date format returned is: 2014-09-01 03:31:00
Is it possible to convert datatype and retain en-gb date format of dd-mm-yyyy hh:mm:ss
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As noted above there is only one single binary representation
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SSMS presents the datetime in YYYY-MM-DD string format (ANSI FORMAT). That was the decision of the software team which developed it.
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syntax of the CONVERT.
This is the staging table:
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[TimeIndex] [varchar](100) NULL,
[Cluster] [varchar](100) NULL,
[AvgMem] [varchar](100) NULL,
[AvgCPU] [varchar](100) NULL,
[TotalMemory] [varchar](100) NULL,
[TotalCPU] [varchar](100) NULL,
[Datacenter] [varchar](100) NULL,
[vCenter] [varchar](100) NULL
) ON [PRIMARY]
This is the prod table I'm moving it to:
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[ClusterID] [int] IDENTITY(1,1) NOT NULL,
[ClusterName] [varchar](25) NULL,
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[TimeIndex] [datetime] NULL,
[AvgCPU] [decimal](5, 2) NULL,
[AvgMem] [decimal](5, 2) NULL,
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[TotalMem] [decimal](8, 2) NULL,
[vCenterID] [int] NULL,
CONSTRAINT [PK_Clusters_1] PRIMARY KEY CLUSTERED
[ClusterID] ASC
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) ON [PRIMARY]
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INSERT INTO [dbo].[Clusters] (ClusterName,DatacenterName,TimeIndex,AvgCPU,AvgMem,TotalCPU,TotalMem,vCenterID)
SELECT SUBSTRING(Cluster,1,25) AS ClusterName,
SUBSTRING(Datacenter,1,25) AS DatacenterName,
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CONVERT(decimal(5,2),AvgCPU) AS AvgCPU,
CONVERT(decimal(5,2),AvgMem) AS AvgMem,
CONVERT(decimal(8,2),TotalCPU) AS TotalCPU,
CONVERT(decimal(8,2),TotalMemory) AS TotalMem,
'3' FROM [dbo].[staging_table]
Sample data is 0.00 to 100.00 in fields AvgCPU and AvgMem, and TotalCPU and TotalMem usually goes up to about 7 digits with no decimal (eg. 7543253) but could be 8 and although I've never seen a decimal I wouldn't rule it out so decided to account for it.
I assume it's something I've overlooked with the syntax but any ideas would help.
Thanks
Adam

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decimal(8,2) = this is a total of 8 digits, 6 digits for the whole number and 2 for the fractional.
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Best practice to define length for varchar field of table in sql server

What is best practice to define length for a varchar field in table
where field suppose Remarks By Person varchar(max) or varchar(4000)
Could it affect on optimization in future????
experts Reply Must ...
Dilip Patil..

Hi Dilip,
Varchar(n/max) is a variable-length, non-unicode character data. N defines the string length and can be a value from 1 through 8,000. Max indicates that the maximum storage size is 2^31-1 bytes (2 GB). The storage size is the actual length of the data entered
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So the conclusion is just like Uri said, use varchar(max) or varchar(4000) is depends on how much characters we are going to store.
The following document about varchar in SQL Server is for your reference:
http://technet.microsoft.com/en-us/library/ms176089.aspx
Thanks,
Katherine Xiong
Katherine Xiong
TechNet Community Support

Update non-editable field Start date which is calculated from other context

I had created some custom date fields(model, bol entity) in component ICCMP_BTSHEAD. We are calculating Start date based on the new input value into receiving date in the other context node.
so, for this i get the value on controller class(_IMPL). and pass the same value in the GET method of Start date.
But, Problem is Start date is the non-editable field so SET method will not be trigger as expected. so the same i used the DO_PREPARE_OUTPUT method but it's called and update the value when we press the enter. IF directly we click on the "SAVE" button then it' trigger but value is not updating in the database.
Please, find the below piece of code for the same. can u please anybody help me that how can i achieve this requirement.
DATA: l_recieve_date     TYPE crmt_date_timestamp_from,
        lr_current TYPE REF TO cl_bsp_wd_mixed_node,
        lr_col      TYPE REF TO cl_bsp_wd_collection_wrapper.
DATA: lv_date TYPE d,
         lv_time TYPE t,
         lv_date_temp TYPE sydatum.
IF iv_first_time EQ abap_false. "avoid for first tile load
Read the value of btreceivedate-TIMESTAMP_FROM.
    lr_col = me->ztyped_context->btreceivedate->get_collection_wrapper( ).
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                INTO DATE lv_date TIME lv_time.
Check day is working day - if not, correct to previous working day
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        CALL FUNCTION 'DATE_CONVERT_TO_FACTORYDATE'
          EXPORTING
            correct_option      = '-'
            date                = lv_date
            factory_calendar_id = 'GB'
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            date                = lv_date_temp
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            date_after_range    = 1
            date_before_range   = 2.
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          lv_date = lv_date_temp.
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      ENDIF.
      CONVERT DATE lv_date TIME lv_time
             INTO TIME STAMP l_recieve_date TIME ZONE sy-zonlo.
    ENDIF.
    lr_col = me->ztyped_context->btstart->get_collection_wrapper( ).
    IF lr_col IS BOUND.
      lr_current ?= lr_col->get_current( ).
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        lr_current->if_bol_bo_property_access~set_property(
                   iv_attr_name = 'APPT_TYPE'               "#EC NOTEXT
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        lr_current->if_bol_bo_property_access~set_property(
                        iv_attr_name = 'TIMESTAMP_FROM'     "#EC NOTEXT
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      ENDIF.
    ENDIF.
ENDIF.
could you please help me?

Hi,
Thanks for your reply,
yes, i checked the same thing also. But DO_HANDLE_DATA is called before the SET method of receiving date and in that case we are getting the old value in DO_HANDLE _DATA and source and Target fields both are not updating.
I checked, if, i'll change the input field then set method of input field and then EH_ON_SAVE is called directly.
i think, if i'll do the same modification in the EH_ON_SAVE method as i did in the DO_PREPARE_OUTPUT then it can be updated but i don't want to change the EH_ON_SAVE at this moment.
is there any other way to update the START DATE(Display mode in the screen) which is calculate from the other context node field receiving date.

Converting varchar field to date

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