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Asked: 2026-06-07T17:55:13+00:00

I am trying to convert a string into Date using Derived column and I

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I am trying to convert a string into Date using Derived column and I am using Flat File Source.
I read bunch of articles on stackoverflow and followed the same steps but I am unable to convert my string into date format.

Here is the string

Tue Nov 25 17:32:03 EST 2008

And I want to show it like

2008-nov-25

I tried using the following code

(DT_DBDATE)(SUBSTRING(dateCreated,24,4) + "-" + SUBSTRING(dateCreated,4,3) + "-" +    SUBSTRING(dateCreated,8,2))

I also tried to use 

  (DT_DATE)(SUBSTRING(dateCreated,24,4) + "-" + SUBSTRING(dateCreated,4,3) + "-" +    SUBSTRING(dateCreated,8,2))

  (DT_DBTIMESTAMP)(SUBSTRING(dateCreated,24,4) + "-" + SUBSTRING(dateCreated,4,3) + "-" +    SUBSTRING(dateCreated,8,2))

Is this the correct way to convert the string into date format?

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1 Answer

  1. Editorial Team

    I dont think its possible to display the in the format of yyyy-mon-dd as per BOL. I checked your expression and after minor changes, was able to make it to work. You cannot typecast your string into a string again (You want month name in your output). Even if you were to use the DATEPART function, it would again amount to concatenating different parts into a string.

    The expression that works with your input is as follows (replace @dateCreated with whatever you want to).

    SUBSTRING(@[User::dateCreated],24,5) + "-" + SUBSTRING(@[User::dateCreated],4,4) + "-" + SUBSTRING(@[User::dateCreated],8,3)
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