Incremental import - is it possible?

Hi,
i'm dealing with a sort of schema replication between two db.
I have a full export and i need to do a sort of incremental import of some schemas.
No way to use dblink. There's a ..... firewall!
I'm planning to use dp, much better than exp/imp, but i'm not sure it's so smart to retrieve only the data i need.
I see that there is an option, TABLE_EXISTS_ACTION=APPEND but i suppose dp would append every rows it founds causing a duplication..
Any ideas or suggestion?
Thanks
Acr

Incremental updates won't be possible as required in this situation.
Oracle streams can be used to configure replication between the servers while considering that port 1521 or whatever port of your listener is allowed via firewall.
Regards,

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Regards
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Thank you all, for your prompt response
I know about RMAN, but our management outsourced our data center and the guys there does not look comfortable around oracle - and me as a DBA was assigned to taking this export backup and import it to another PC once in a day
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afzal wrote:
Dear Sir,
ok question number 2 is clear that incremental backup is not possible but still confuse
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again please correct my script
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My Oracle Video Tutorials - http://kamranagayev.wordpress.com/oracle-video-tutorials/

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my-wedding-foto.de wrote:
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Incremental import - is it possible?

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