How to enable 2 phase commit in oracle11g(for distributed oracle databases)

Hi All,
We have three oracle servers(11g) and we need to update the data from one server to remaining servers. Want to know, is "two phase commit" automaticly enabled/installed in 11g or we need to enable it. If we need to enable it then what are the all steps required for the same.
Thanks & Regards
Ravi

It is always very nice to see people think they are so unique their question has not already been answered in the documentation.
Yes, two phase commit is enabled.
No, depending on what you want, automatically updating records from one server to other servers is likely a very bad idea, as Oracle has documented facilities for that.
You have amongst others
- Materialized views
- Oracle Streams
Those solutions definitely scale much better as your approach, as they are asynchronous. In your approach the master server will slow down as a result of updating slaves.
In distributed databases 'push' approaches are to be avoided and 'pull' approaches to be preferred. Which is exactly what materialized views and Streams do.
Sybrand Bakker
Senior Oracle DBA

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Message was edited by:
Bart Kummel

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import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
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import org.eclipse.persistence.internal.sessions.AbstractSession;
import org.eclipse.persistence.logging.SessionLog;
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import org.eclipse.persistence.sessions.SessionProfiler;
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