Blank spaces

How can I pass blank spaces for Required fields into database from Forms as
Initial Value , On insert , Post insert options does not work.
Thanks- HAVE YOU TRIED SETTING THE SETTING THE DEFAULT VALUES ON THE FIELDS?

-DO THEY HAVE TO BE SPACES? WOULD 'NULL' VALUES WORK?|||Originally posted by edwinjames
- HAVE YOU TRIED SETTING THE SETTING THE DEFAULT VALUES ON THE FIELDS?

-DO THEY HAVE TO BE SPACES? WOULD 'NULL' VALUES WORK?

1. Forms will not take blank spaces as it will truncate it for varchar2 fiedls .

2. All fields are required.

3. Assigning it from triggers have different problems of record locking.