The Definitive Guide to Data Quality
I expect talend to encode it to "?"
Ok, yes, that makes more sense. Talend has no built in way to do this. Best thing would be to set up a new routine and use this (not tested by me):
Watch the recorded webinar!
Pick up some tips and tricks with Context Variables
Learn how media organizations have achieved success with Data Integration
Introduction to Talend Open Studio for Data Integration.