Chapter 1: Replication Agent for UDB

DB2 Universal Database datatype restrictions

If you use a version of Replication Server prior to version 12.5, the following size restrictions are imposed on DB2 datatypes:

DB2 VARCHAR, VARCHAR FOR BIT DATA, VARGRAPHIC, and the LONG variants of those datatypes that contain more than 255 bytes will be truncated to 255 bytes.
DB2 GRAPHIC, LONG VARGRAPHIC, and VARGRAPHIC multibyte character datatypes will be replicated as char or varchar single-byte datatypes.

With Replication Server version 12.5 or later, these datatype size restrictions are no longer in effect.