XSJS : JSON, Inserting VARBINARY(RAW) data into a Table via XSJS/JSON

Experts!

I'm trying to insert JSON data read from one table into another table (why? ...long story) . Observing the JSON string, I see the name value pair of the VARBINARY data type field like this:

"VARBINARY_FIELDNAME" : { }

Im looping at the JSON array to prepare data for insert. The insert query via hdbconnection  "INSERT INTO ... VALUES ( ?,?,?)" fails with something to the effect of "parameter not consistent".

Any special handling necessary here?

Nehal.