Approaches to transfer changed data from a table to another table

Hello expert,
will you please show me all approaches to automatically detect and transfer changed data from a table to another table ? I don't need detail information, but a little comment for those approaches are more welcome.
Many Thanks,
Edited by: 843178 on 19-Dec-2011 2:04 PM

You will want to review information on replication and similar methods
In a nutshell:
Replication allowed data to exist at more than one site and take the Master / original table data and clone it at a different site
As tranporting all of the table data to a remote / clone site got more and more expensive we developed a method
to identify just the 'diffs' and only send those from the master to the clone which needed only the diffs to become a clone of the master table
This has many methods and options, but looking under key words such as
- distributed transations
- materialized views
- replication
... are a few categories that will get you started

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