I need to connect to Oracle db and all my IDs are RAW datatype. When I import the table in Tableau, these fields don't show up.
So I used UTL_RAW.CAST_TO_VARCHAR2 to convert these to varchar2. This helps with importing the fields in Tableau. But these fields now have unreadable characters like ' "�G��� κ'.
Can you please help me import these fields in Tableau and still keep them readable?
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