changing ? or ¿ or � back to Special characters.

Hi there,

I am working with a ETL importing data from Oracle to SQL Server using SSIS 2012.  Oracle source data contains special characters which appear as ? or ¿ or � in Toad. 

I know this oracle data is Puerto-Rico Spanish and because of improper character set, these characters are showing as '?' etc.

I do not think it is possible to convert these '?' etc into their original special characters. Had the source data been correct , SSIS would have  easily handled the data correctly.  But I am not a SSIS expert and just wanted to ask around if anyone has dealt with similar issues. 

Thanks