To use Db2 for Linux, UNIX, and Windows (LUW) sources in database ingestion tasks, first prepare the source database and review the usage considerations.
Usage considerations
Mass Ingestion Databases
does not support the following Db2 for LUW data types:
LONG VARCHAR
LONG VARGRAPHIC
LONG VARCHAR FOR BIT DATA
BLOB
CLOB
DBCLOB
NCLOB
XML
Database ingestion
jobs propagate nulls for columns that have these data types.