Problem in Update using STREAMS in Ora 10g EE

Hi
I am using Oracle 10g Enterprise Edition for replicating datas after failover occurs in DB
I had followed the steps in below URL..
http://blogs.ittoolbox.com/oracle/guide/archives/oracle-streams-configuration-change-data-capture-13501
The replication is achived using streams.
INSERT,DELETE operations working fine without any issue. But UPDATE operation is not replicated immediately.
I did UPDATE and gave COMMIT, no replication. Again I did UPDATE and gave COMMIT, now only it updates the Streams table.
For every UPDATES it needs two times? Why? How to solve this?
Or Any other URL which gives working examples of Streams in 10g..
Any help regard this highly appreciated..

Thanks for ur reply..
There is no specific reason to use STREAMS..
I have to replicate the data during my properity database stated up.
We already discuss with this topic
Data Replication in after downtime
Instead of using Triggers or procedure, i have to use anyone of the technologies in Oracle 10g for DataReplication..
Can you give me more info like advantages of using DataGuard or other techologies in Oracle 10g EE .

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catch (Exception ex) {
log("Error Description", ex);
error("Error :"+ex.getMessage());
return null;
Please, Some idea of why gives the error? Help!
Thanks in advance!
Ren�
P.D. Excuse my English.

Hi All!
New Info:
System.out.println(" date created : "+ido_personsDataProvider.getValue("DATE_CREATED"));
System.out.println(ido_personsDataProvider.getCachedRowSet().getMetaData().getColumnClassName(13));When these lines are printed in Java Sun Application Server for JSC show this:
[#|2006-05-05T17:12:50.264-0500|INFO|sun-appserver-pe8.1_02|javax.enterprise.system.stream.out|_ThreadID=15;|
date created : 2006-04-24 00:00:00.0|#]
[#|2006-05-05T17:12:50.264-0500|INFO|sun-appserver-pe8.1_02|javax.enterprise.system.stream.out|_ThreadID=15;|
java.sql.Timestamp|#]
When these lines are printed in Tomcat show this:
date created : 2006-04-24
java.sql.Timestamp
Why? the values of this date is different in one or another server. Problem of driver JDBC? I use driver: to ojdbc14.jar, in Tomcat for the connection to the BD Oracle. Maybe this originates error UPDATE_ROW_CONFLICT...
Please, any idea?
Thanks!

Problem in Update using STREAMS in Ora 10g EE

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