SSIS - script component DateTime Formats Implicit Conversion

General Info
These are the default formats of datetimes datatypes (when converting from string)

DT_DBDATE
yyyy-mm-dd

DT_FILETIME
yyyy-mm-dd hh:mm:ss:fff

DT_DBTIME
hh:mm:ss

DT_DBTIME2
hh:mm:ss[.fffffff]

DT_DBTIMESTAMP
yyyy-mm-dd hh:mm:ss[.fff]

DT_DBTIMESTAMP2
yyyy-mm-dd hh:mm:ss[.fffffff]

DT_DBTIMESTAMPOFFSET
yyyy-mm-dd hh:mm:ss[.fffffff] [{+|-} hh:mm]

Note: DT_DATE and DT_DBTIMESTAMP has the same SET method And i think that converting string to date is depending also on your current culture info More detailed information are found here

• https://msdn.microsoft.com/en-us/library/ms141036.aspx
• http://www.bidn.com/blogs/DevinKnight/ssis/1387/ssis-to-sql-server-data-type-translations

Experiments :

I didn't find any related article on this issue so i made the following experiments:

SSIS Implicit datetime Conversion

i created a SSIS package with a Dataflowtask. in this dataflowtask i created a Script Component (as a Source) and a Flat File Destination. The script has one output column `OutDate` of type `DT_DbTimeStamp` Inside the script i used the following code:

Private dtDate As Date = #01/01/2016#

Public Overrides Sub CreateNewOutputRows()

    Output0Buffer.AddRow()


    Using sw As New IO.StreamWriter("D:\Result.txt", False)
        sw.WriteLine("CultureInfo;Date;Format;Accepted")
        sw.Close()
    End Using


    For Each ci As System.Globalization.CultureInfo In System.Globalization.CultureInfo.GetCultures(Globalization.CultureTypes.AllCultures)

        For Each strFormat As String In ci.DateTimeFormat.GetAllDateTimePatterns

            Dim boolResult As Boolean = True
            Try


                Output0Buffer.OutDate = dtDate.ToString(strFormat)

                boolResult = True

            Catch ex As Exception

                boolResult = False



            End Try

            Using sw As New IO.StreamWriter("D:\Result.txt", True)
                sw.WriteLine(ci.Name & ";" & dtDate.ToString(strFormat) & ";" & strFormat & ";" & boolResult.ToString)
                sw.Close()
            End Using

        Next



    Next



End Sub

First i am looping over all culture info and i am Getting all datetime formats related to it and looping over them. Then i am trying to convert the date `dtDate` declared to a formatted string and assign it to the Output column.

So if assigning string value with specified format to DT_DBTIMESTAMP output column is accepted that means the format is implicit converted

Output0Buffer.OutDate = dtDate.ToString(strFormat)

And Here is the Link of the Result File:

- https://www.dropbox.com/s/0f1kmbzgh78fkxw/Result.txt?dl=0

This article is posted as an answer on Stackoverflow at Feb 4 2017