"cannot create an updatable ROWID materialized view with LOB columns"
*Cause: The propagation of LOB data from materialized view sites to the
master site requires a primary key on the replicated table. Thus
updatable ROWID materialized views that contain LOB columns are not
*Action: Create a primary key materialized view instead of a ROWID
materialized view. If the materialized view already exists, it can
be converted to a primary key materialized view using the ALTER
MATERIALIZED VIEW DDL command.