Transfer data from Access DB to Oracle DB and Vice Versa in a java program

[carina caoor]

HI In my application i have tables with huge data in Access database, user working on my application can modify the data present in the database through the screens designed , now i want to know how can the data present in the tables in Access database can be copied to tables in the oracle database(oracle database also contains the same tables as of access database) from application itself.
for example an admin user should be able to transfer all the newly updated data from access database to oracle database by clicking some button .
Can anybody guide me on this?

[Paul Sturrock]

Please don't post the same question in more than one forum. Thanks!