Caution: when you manually edit and load delta sql into Oracle, you are not just changing the format but the actual size of the field in Oracle. Please make sure that you understand consequences of altering an existing table in Oracle.
The reason there is no information about the format change or size change of an existing field in the delta.sql file is that Oracle allows you to increase the size of a field but to only decrease if all rows have NULL value in field. Sinc we do not require the user to be connected to ORACLE, this can not be verified.
References to Written Documentation:Progress Solution:
P13836, What does the Adjust Schema option do and why use it?