Changes not getting reflected in Database

hi all,
i'm newbie in ORACLE

I'm using ProC
i'm trying to INSERT a record in the table through a DML
after the INSERT statement i'm checking sqlca.sqlcode
its returning 0

then i'm doing COMMIT
this action also returning sqlca.sqlcode 0

but the changes are not getting reflected in the Database

so what extra care i need to take....

Thanks in advance
Abhay.