SISS - Check Null DerivedColumn
Does someone knows how to check IS Null expression on SISS ?
IF columns is NULL > RETURN NULL , IF is NOT return value from column
I am developing this on DerivedColumn.
FYI: The column is not always in my Excel layout, that is the reason that I have to check if that column exists or not.
Solution
You can use the following expression:
(ISNULL([InputColumn]) || [InputColumn] == "") ? NULL(DT_STR,50,1252) : [InputColumn]
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