I am not sure if you are referring to a table created for your application. Regardless , you should be able to update the table through an application using JDBC or an update/ insert in sql+. The user updating the user table must have the privelges to do so. You can do just about anything with a jdbc connection as long as you have the user privelges. hope this helps .
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com