I was able to configure table source and access a table inside CQL Processor.
The problem is that some of the fields in my table contains data in language that not English.
When I trying to select this field - I get '?' (question mark) instead.
PL/SQL Developer returns the data from this field correctly.
Using JDBC also returns correct data.
Database encoding is AMERICAN_AMERICA.IW8ISO8859P8.
Any help in fixing the issue will be appreciated .