Question : DT_WSTR vs DT_STR.

I have two data columns which I am trying to join in a ssis lookup. The data type of the first column is DT_WSTR and the second column is DT_STR.

What is the difference between the two data types? Is one a char and the other a varchar?

Answer : DT_WSTR vs DT_STR.

DT_WSTR is NVarchar, try casting your DT_STR as DT_WSTR to do the compare.
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