Issue

Cause

Solutions

table comment

select 'COMMENT on TABLE '||owner||'.'||table_name||' IS '''||comments||''';'
from dba_tab_comments
where owner='**SYSCAT**'    <= Change to the user name to be migrated
and comments is not null;

column comment

select 'COMMENT on COLUMN '||owner||'.'||table_name||'.'||column_name||' IS '''||comments||''';'
from dba_col_comments
where owner='SYSCAT'
and comments is not null;