Streams replication in Oracle XE.

Hi,
I'm planning an implementation of Oracle Streams replication. Some of the considerations and facts are stated below.
1. DDL Changes will be maintained.
2. Replication will be Bi-Directional.
3. The operating system on the source and downstream sites are the same.
4. The hardware and operating system architecture on the source and downstream sites are the same.
5. Both the source database and the downstream database are be running Oracle Database 10g (details below).
Source Database
Oracle Database 10g Express Edition Release 10.2.0.1.0 - Beta
PL/SQL Release 10.2.0.1.0 - Beta
CORE 10.2.0.1.0 Beta
TNS for 32-bit Windows: Version 10.2.0.1.0 - Beta
NLSRTL Version 10.2.0.1.0 - Beta
Downstrean Database
Personal Oracle Database 10g Release 10.1.0.2.0 - Production
PL/SQL Release 10.1.0.2.0 - Production
CORE 10.1.0.2.0 Production
TNS for 32-bit Windows: Version 10.1.0.2.0 - Production
NLSRTL Version 10.1.0.2.0 - Production
Here I have found that Oracle XE (source) is not supporting the local capture process.
My questions:
1. Can I consider downstream capture in this scenario? (As I have Personal Oracle Database 10g Release 10.1.0.2.0 as downstream database)
2. In case of archive log downstream capture what will be the most efficient way of redo log transportation.
Thanks in advance.

1. In a RAC cluster? The name I would put in the scripts is "insanity." Why? You are going to bring this instance to a crawl.
2. No problem in doing a transformation. The problem was in your first question.
3. I wouldn't worry much about monitoring it. I'd just get a stopwatch and see how many seconds before it crashes.
If the data is in one schema in the database then just make it available, via object privs, to the others. Replicating it, as you have described, is likely going to be a painful experience in far more ways than just wasted storage.

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9i does'nt functionality to do some advance maintenance task that could required on production enviorment. We are hoping 10G would be better option to go with streams.
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-->How effective this tool is compared to prior version 9i.
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Hi Rateesh,
-->How effective this tool is compared to prior version 9i.Very good. I use Streams in many production environments, even for bidirectional replication. Streams is very stable in 10g.
For replication of production enviorment, would it be an ideal choice compared to third party vendor like golden Gate or shareplex.It depends on several factors. It's better than GG and Shareplex by far (IMHO).
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http://www.rampant-books.com/book_2004_2_streams.htm
Hope this helps. . . .
Donald K. Burleson
Oracle Press author

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Can someone help me oracle replication troubleshooting ?
I have source and target databases. I have setup one-way stream replication successfully. Whatever data I insert into table A, it is replicated to target database succesfully.
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Hi Basu,
Thanks a lot for response
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FUNCTION Replicate_Lcr (
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ORCL1: 64-bit Windows, ver. 10.2.0.4.0, Windows 2008 server
ORCL2: 32-bit Windows, ver. 10.2.0.1.0, Windows XP
ORCL3: 32-bit Windows, ver. 10.2.0.1.0, Windows XP
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data DATE NOT NULL,
msg SYS.lcr$_row_record NOT NULL
-- simplified, always return 'Y'
CREATE OR REPLACE FUNCTION Replicate_Lcr (
p_lcr IN SYS.lcr$_row_record)
RETURN VARCHAR2 IS
PRAGMA AUTONOMOUS_TRANSACTION;
BEGIN
IF p_lcr IS NOT NULL
THEN
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VALUES (SYSDATE,
p_lcr);
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BEGIN
DBMS_STREAMS_ADM.add_schema_propagation_rules
(schema_name => 'data_schema',
streams_name => 'primary_to_secondary2',
source_queue_name => 'strmadmin.capture_primary',
destination_queue_name => 'strmadmin.from_primary@ORCL2',
include_dml => TRUE,
include_ddl => TRUE,
source_database => 'ORCL1',
and_condition => ' strmadmin.Replicate_Lcr(:dml) = ''Y'' ',
inclusion_rule => TRUE,
queue_to_queue => TRUE);
END;
-- check if function 'Replicate_Lcr' was evoked:
SELECT * FROM stream_log_lcr ORDER BY data;

hi porzer,
In Propagation process ( source) also 0 errors. But in apply ( dest ) under statistics under server status is displaying as IDLE. And Coordinator status is APPLYING. In Capture (source) no error. In Applying ( dest ) no error. what else i can do please?
up to now what i did i am telling:
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SQL>@e:\oracle\product\10.2.0\client_2\sysman\report\OTEST_ADMIN_NON_OMS_startup.sql
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Thanks in advance.

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Thanks for our time and help. Yes, you are right.
FYI... we had supplemental logging. Our team tried with different configuration combinations yesterday. Finally, we found that unconditional supplemental logging must be there to resolve the issue. We had conditional supplemental logging thou. After changing it to unconditional, it was working. There is no need for update conflict handlers or substitute keys.
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Viacheslav Ostapenko wrote:
Sorry, Aman,
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Thanks in adavance:
- Sanjay
Edited by: sanjayku on Dec 8, 2010 4:38 PM

Never done it, but I don't see any reason why it should not work.
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schema_names                     => 'hr,scott,ddup',
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Hi
did you find a solution to your problem?I too have the same problerm. But what I understand is , When the driver fails to connect to the database due to wrong password or username, It repeatedly attempts to connect. So is there any way to restrict the number os attempts made by the driver?I guess Jconnect driver has some attributes to do this.Does someone know if there are any other drivers?

A question about learning Streams Replication

Hi
I'm going to learn Streams Replication , I want to know that, do I need study all "Oracle® Streams Concepts and Administration" document (http://download.oracle.com/docs/cd/E14072_01/server.112/e10704/toc.htm) before study "Oracle® Streams Replication Administrator's Guide" (http://docs.oracle.com/cd/E18283_01/server.112/e10705/toc.htm) ?
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There are several docs at MOS with examples and steps on how to configure various Streams scenarios. Both the Packt and Oracle Press books are very good. Going through these items will make the Oracle docs much easier to digest.
Edit
See: Master Note for Streams Setup Scripts (Doc ID 789445.1)
Edited by: stevencallan on Nov 14, 2011 9:12 AM

Can you use streams replication to replicate an advanced queue?

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Streams replication in Oracle XE.

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