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Asked: 2026-06-18T11:45:07+00:00

I have a comma delimited text file that I import into SQL server 2008

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I have a comma delimited text file that I import into SQL server 2008 using an SSIS package. As part of the package I have a derived column as part of the text file is an end date. THe problem I have is if there is no end date the text file has 00000000 instead of a real date such as 20130207. In my derived column editor I have the following expression which works fine for dates that arent all zero’s.

(DT_DATE)(SUBSTRING([Column 20],1,4) + "-" + SUBSTRING([Column 20],5,2) + "-" + SUBSTRING([Column 20],7,2))

Can anyone offer a solution or assistance on how best to handle the zeros?

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1 Answer

  1. Editorial Team

    Cause:

    The Derived Column transformation is trying to convert the value 00000000 to the date 00-00-0000, which is not considered as a valid date value.

    Option 1: Database column allows NULL

    If your database column is defined as NULL, which means that it can accept NULL values, change the expression in the Derived Column transformation as following:

    [Column 20] == "00000000" ? NULL(DT_DATE) : (DT_DATE)(SUBSTRING([Column 20],1,4) + "-" + SUBSTRING([Column 20],5,2) + "-" + SUBSTRING([Column 20],7,2))

    Option 2: Database column does not allow NULL

    If your database column is defined as NOT NULL, which means that it cannot accept NULL values, change the expression in the Derived Column transformation as following:

    [Column 20] == "00000000" ? (DT_DATE) "1900-01-01" : (DT_DATE)(SUBSTRING([Column 20],1,4) + "-" + SUBSTRING([Column 20],5,2) + "-" + SUBSTRING([Column 20],7,2))
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