I have a column that I need converting from string date time to an actual data time data value.
The current format is as follows
15-JUN-22 10.24.10.414000
and I need to change it to the following format
15-06-22 10.24.10.414000
I use a stored procedure to automatically change the format, but it fails on this stage due to the non numeric characters.
Is there a way map or change all the string months to int values within the datetime? and if so how?
Converts used so far
TRY_CAST(CREATE_DATE AS DATETIME2(7)) AS CREATE_DATE
AND
CASE WHEN LEN([INTERVAL_START_DATE]) > 0 THEN TRY_CONVERT(DATETIME2, [INTERVAL_START_DATE], 103) ELSE NULL END
try this
CAST({your field name} as date) CONVERT(date,'{systemClock.UtcNow.ToString("o")}',127)
Related
I am trying to convert a column value to datetime.
CONVERT(datetime, ColName,105)
This converts all the blank values to default 1900-01-01 00:00:00.000.
I want to retain the blank values post conversion too.
If ColName only contains empty (var)char values, you can add NULLIF to the ColName like
CONVERT(datetime, NULLIF(ColName, ''),105)
If you're converting to a DATETIME then you won't be able to have a "blank" value, but you could have NULLs instead:
CASE WHEN ColName IS NULL OR LEN(LTRIM(ColName)) = 0 THEN NULL ELSE CONVERT(DATETIME, ColName, 105) END
This will convert any NULLs, blank strings, or whitespace to a NULL DATETIME, and convert everything else to a DATETIME with a value (assuming it's a valid date).
Blanks values will convert to SQL server default datetime value. Following query will help you not to convert the blank values. However it is better to have NULL instead of a ' '
SELECT CASE WHEN NULLIF(COLUMN,'') = NULL THEN
NULL
ELSE CONVERT(datetime, dd,105) END
FROM <TABLE>
First of all, storing dates as strings and using empty strings to represent missing values are very bad ideas. The problem can be fixed once and for all by converting that field into a nullable date or datetime.
Until that's done, or in order to do it easily, you can use the TRY_PARSE function available on all supported SQL Server versions. The earliest supported SQL Server version is 2012. 105 is the italian format, so :
SELECT TRY_PARSE(ColName as datetime USING 'it')
For example
select try_parse( '13-11-2018' as datetime USING 'it')
Will parse the string value into a datetime whose value is 2018-11-13 00:00:00.000. Anything that can't be parsed will return a NULL :
select try_parse( '' as datetime USING 'it')
Will return NULL.
In earlier versions one can use CASE WHEN or the equivalent IIF :
select IIF(TRIM(ColName)='',NULL,CONVERT(datetime, ColName,105))
Returning NULL is the only option because date types like date, datetime etc are scalar types just like int or decimal. There's no empty date or datetime. The only possibility is to have a NULL for a missing value or an actual date.
Trying to return some kind of blank value means that the dates will have to be converted back to strings.
One of the columns my_column in my table is of type varchar where i store value of date in string. The format is 'MM/DD/YY'. I want to use cast function of hibernate to convert this column value to date. But it appears that the cast function accepts string of 'yy-mm-dd' format to convert. Is it possible to use cast for string with specific date format for conversion. Something like this: cast(am.my_column as date format 'mm/dd/yy')
cast function in hibernate is used this way: cast(am.my_column as date).
My use case is basically converting the column value from string to date and making a date comparison. cast(am.my_column as date format 'mm/dd/yy') > '12/30/2017'
Instead of casting a column value inside the query, you may consider to give '12/30/2017' as parameter (with type of Java Date). So that you can directly write am.my_column > :parameterDate
I have a column in my table for storing dates and it is in 12-06-2013 15:32:45. I want to convert it to MM/DD/YYYY format. How can I do it?
Coulmn type is varchar
First you need to CONVERT VARCHAR() to datetime type and and then to CONVERT it to string in desired format:
SELECT CONVERT (varchar (10), CONVERT (date,'12-06-2013 15:32:45' ,103),101)
First 103 is used to interpret current date format, and second - 101 - target format.
If you change target date format from varchar to date then your output in MSMS will be in default display date format of you SQL Server, not the desired format. This is because SQL Server stores dates as integers and converts them before dispalying the value. Therefore if you need to store in certain format, then store in VARCHAR type.
Check out CAST and CONVERT functions on MDSN
or you can do it in your c# code like that :
First you have to take your date from your table and put it in string var "DT" exemple :
string strDT =db.TableTitle.date;
string date = strDT .ToString("MM/DD/YYYY");
DateTime DT = Convert.ToDateTime(date);
then you can use the DT time variable :)
I have a column in my table with Dates in the format yyyy-mm-dd I want to convert all the dates in that column to the format mm/dd/yyyy
I am using the below query
UPDATE Test.dbo.Status
SET DateIn = CONVERT(DATE,DateIn ,101)
The DateIn column is defined as Date in my table (DateIn DATE NULL)
The query does no change to the data. am I doing some thing wrong here?
You can change the default format in which SQL Server displays a date, but you can't alter the way a DATE value is stored via CONVERT(). You can format a date however you want if you store it as a string, but you lose functionality when you do that and it's not advisable. If you are hell-bent on storing a formatted version, you might want to create a new VARCHAR() field so you can preserve your DATE version.
You're better off formatting the date at the application level.
The reason your query does nothing is that the actual DATE values are equivalent. Notice when you take any valid date format and CAST() it as DATE the resulting format is the same regardless of the input:
SELECT CAST('20040510' AS DATE)
SELECT CAST('2004-05-10' AS DATE)
SELECT CAST('May 10, 2004' AS DATE)
All return: 2004-05-10 on my instance of SQL Server.
I'm working on a data warehouse project and would like to know how to (preferably in a Derived Column component in a Data flow) strip the date piece off of a SQL datetime record.
Once I have the datetime converted to just a time I am going to do a lookup on the time to find the related time record in a time dimension table.
Can someone give me a simple function to accomplish this inside a derived column transform?
Example: Transform a datetime such as "12/02/2008 11:32:21 AM" into simply "11:32:21 AM".
I would just do a cast to DT_DBTIME type (using Derived Column transform, or Convert type transform). DT_DBTIME contains just (hours, minutes, seconds) part of the date/time, so you'll get rid of the date part.
If you need to do this in a variable expression Michael's solution won't work, but you can use the following expression:
(DT_DATE)(DT_DBDATE)GETDATE()
(DT_DBDATE) converts the current date and time to a date only. But the new datatype is not compatiple with SSIS's datetime. Therefore you'll have to use (DT_DATE) for converting to a compatible type.
Courtesy of this solution belongs to Russel Loski who has posted it in his blog:
http://www.bidn.com/blogs/RussLoski/ssas/1458/converting-datetime-to-date-in-ssis
Actually if you reverse the first 2 expressions like this: (DT_DBDATE)(DT_DATE)GETDATE()
instead of (DT_DATE)(DT_DBDATE)GETDATE(), then you will TRUNCATE the time off the date field.
If the DT_DATE expression is before the DT_DBDATE expression, you will still have the time portion in your output, but it will be reset to all zeroes.
Ran into this with writing a report for a scheduling app, needed the time that was stored as part of a datetime data type. I formated the datetime as 0 which gives you this mon dd yyyy hh:miAM (or PM), and just did a substring of that which returned the time only in an AM/PM format.
Example below.
DECLARE #S DATETIME = GETDATE()
SELECT SUBSTRING(CONVERT(NVARCHAR(30), #S , 0) , 13 , 10) AS ApptTime
, CONVERT(NVARCHAR(30), #S , 0) AS ApptDate
I personally use a series of functions for this. E.g.:
ALTER FUNCTION [dbo].[TIMEVALUE]
(
#Datetime datetime
)
RETURNS datetime
AS
BEGIN
RETURN (#Datetime - CAST(ROUND(CAST(#Datetime AS float), 0, 1) AS datetime))
END
I'd love to claim all the credit but it should really go to this guy.