Hi Jojo,
After you have taken an unload and save the output of dbshcema in to a file. Edit the file and give the table a new name, then run dbaccess, select your database and run the schema file, a new table will be created. Then load the data into the new table. Check the contents. Now drop the old table and rename this table to your old table.
Steps -
In dbaccess
unload to a.unl select * from abc
At unix prompt
dbschema -d nwo -t abc a.out
(will create a file a.out with the schema of table abc, edit this file and change the table name say to xyz)
In dbaccess
Run a.out, a new table will be created
load from a.unl insert into xyz
(check the contents)
drop table abc
rename table abc to xyz
Hope it helps.