Oracle streams versus oracle goldengate

Hi all,
I just found out about oracle goldengate and was wondering if anyone of you could share what are the differences between it and oracle streams when it comes to change data capture capabilities? Also, how does owb come into play when it comes to oracle goldengate? For instance owb 11gr2 has got cdc capabilties so does it mean its cdc capabilities is based on oracle streams?

Hi,
With CDC/Streams you have two choices:
process the Oracle logfiles in the source-database/server and read the resulting changerecords from the target database/server or
transport the logfiles to the target database/server and process them there.
The advantage of the latter case is that you relieve the source from the load of processing the logfiles, but target and and source then need to have the same database and server versions. Golden Gate, if I understand correctly, converts the logfiles to its own format (with mimimal load) and these can be processed by Golden Gate on a target database and server of a different version from the source.
So you have the advantage (little load on the source) without the disadvantage (source and target have to be of equal versions).
Regards,
Jaap.

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Differenece between oracle streams and oracle Replication

Hi all,
Can anyone tell me difference between oracle streams and oracle replication?
Regards

refer the link:Difference Between Oracle Replication & Oracle Streams.
Oracle Replication is designed to replicate exact copies of data sets to various databases. Oracle Streams is designed to propagate individual data changes to various databases. Thus, Replication is probably easier if the end goal is to maintain identical copies of data, where Streams is easier if the end goal is to allow different databases to react differently to data changes.
Oracle Replication is a significantly more mature product-- it is quite usable with older databases. Oracle Streams is a much newer technology and is only usable among different 9i databases. Most competent Oracle developers and DBA's are familiar with Oracle Replication, while many fewer have any real experience with Streams.
The Streams architecture strikes me as a lot more flexible than Oracle Replication's. This leads me to suspect that Oracle will be pushing Streams over Replication in subsequent releases, so I would expect new features in Streams, like DDL changes, that aren't in Oracle Replication. Realistically, though, I don't expect any serious movement away from Replication for at least a few releases, so I wouldn't tend to be overly concerned on this front.
answered by Justin
Distributed Database Consulting, Inc.
reference from forum thread:
Difference Between Oracle Replication & Oracle Streams.

Oracle Streams VS Oracle Data Guard

Hello,
Could you please explain me what are the different between Oracle Streams VS Oracle Data Guard?
They are completely different or similar purposes?
Thanks.

812322 wrote:
Hello,
Could you please explain me what are the different between Oracle Streams VS Oracle Data Guard?
They are completely different or similar purposes?
Thanks.http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:14672061404704

Oracle Streams versus GoldenGate

We are testing a system where Oracle Streams has been very problematic. There multiple source databases pointing to a single target. There is the need to change the value of a field so the software on the target recognizes the source.
Oracle streams has been slow during large transaction sets. If a large delete is done on a source it sometimes brings streams down and winds up needing a full refresh.
That being said, one of the solutions suggested is GoldenGate. Does anyone have experience with GoldenGate?

Hello
If you are using RDBMS 10gR2, then this may not be the case. There are several options to enhance the performance and to skip the large transactions etc. If you are sure that there is a large delete the you can make use of TAGs in Oracle Streams so that streams does not capture those transactions:
execute dbms_streams.set_tag(hextoraw('99'));
delete from abc.xyz where ----
execute dbms_streams.set_tag(NULL);
There are lot of options to handle large transactions like apply spilling etc in Oracle 10gR2. So basically you should be optimizing your environment for using Streams.
Also there are tools like SharePlex etc, but I am not much aware of them. Please feel free to share if you have any thoughts.
Thanks,
Rijesh

Oracle Streams and Oracle Apps 11i

Hi,
I am looking for an oracle solution to build a reporting instance off an e-business suite 11i and offload discoverer reporting to the reporting instance. I have tried dataguard logical standby but too many issues and I cannot use. I am wondering if anyone tried using oracle streams to build a reporting instance from an oracle apps instance?
Thanks

Hi,
Is Streams supported in an E-Business Suite database? We once had a scenerio where some parameters for Streams were conflicting with parameters required for E-Business Suite performance improvement. I could not find any documents from Oracle to verify whether Streams on E-Business Suite database was a supported configuration or not.
So if you have any such document, could you send the link to me?
Also please provide the link to your white paper/presentation.
Regards,
Sujoy

Capture Changes from Sql Server using Oracle Streams - Destination Oracle

Is it possible to capture changes made to tables in Sql Server database and propagate the changes to Oracle Database using Oracle Streams and Heterogeneous Gateway. I see plenty of information about pushing data from Oracle to Sql server, but I haven't been able to find much information about going the other way. Currently we are using sql server 2005 replication to accomplish this. We are looking into the possibility of replacing it with streams.

the brief understanding i have is that there is nothing out of the tin that Oracle provides to stream between SQL Server and Oracle. The senario is documented in Oracle docs however and says you need to implement the SQL Server side to grabe changes and submit to Oracle stream queues.
i'm sure i've seen third parties who sell software to do this.
If you know otherwise please let me know. Also wasn;t aware one could push from SQL Server to Oracle. Is this something only avail in SQL Server 2005 or does 200 also have it? How are you doing this?
Cheers

Oracle Streams 9i Database Link Error

Can anyone be help me regarding Oracle Streams 9i
Oracle Version: 9.2.0.5.0
Initial parameters:
global_name=true
aq_tm_processes=1
job_queue_process=10
log_parallelism=1 scope=spfile
database is in archivelog;
I executed the following SQL statements:
CONNECT sys/xxxxx@db1 AS SYSDBA
CREATE USER strmadmin IDENTIFIED BY strmadminpw
DEFAULT TABLESPACE users QUOTA UNLIMITED ON users;
GRANT CONNECT, RESOURCE, SELECT_CATALOG_ROLE TO strmadmin;
GRANT EXECUTE ON DBMS_AQADM TO strmadmin;
GRANT EXECUTE ON DBMS_CAPTURE_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_PROPAGATION_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_STREAMS_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_APPLY_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_FLASHBACK TO strmadmin;
BEGIN
DBMS_RULE_ADM.GRANT_SYSTEM_PRIVILEGE(
privilege => DBMS_RULE_ADM.CREATE_RULE_SET_OBJ,
grantee => 'strmadmin',
grant_option => FALSE);
END;
BEGIN
DBMS_RULE_ADM.GRANT_SYSTEM_PRIVILEGE(
privilege => DBMS_RULE_ADM.CREATE_RULE_OBJ,
grantee => 'strmadmin',
grant_option => FALSE);
END;
CONNECT strmadmin/strmadminpw@db1
EXEC DBMS_STREAMS_ADM.SET_UP_QUEUE();
CREATE DATABASE LINK db2 CONNECT TO strmadmin IDENTIFIED BY strmadminpw USING 'DB2';
CONNECT sys/xxxxx@db2 AS SYSDBA
CREATE USER strmadmin IDENTIFIED BY strmadminpw
DEFAULT TABLESPACE users QUOTA UNLIMITED ON users;
GRANT CONNECT, RESOURCE, SELECT_CATALOG_ROLE TO strmadmin;
GRANT EXECUTE ON DBMS_AQADM TO strmadmin;
GRANT EXECUTE ON DBMS_CAPTURE_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_PROPAGATION_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_STREAMS_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_APPLY_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_FLASHBACK TO strmadmin;
BEGIN
DBMS_RULE_ADM.GRANT_SYSTEM_PRIVILEGE(
privilege => DBMS_RULE_ADM.CREATE_RULE_SET_OBJ,
grantee => 'strmadmin',
grant_option => FALSE);
END;
BEGIN
DBMS_RULE_ADM.GRANT_SYSTEM_PRIVILEGE(
privilege => DBMS_RULE_ADM.CREATE_RULE_OBJ,
grantee => 'strmadmin',
grant_option => FALSE);
END;
CONNECT strmadmin/strmadminpw@db2
EXEC DBMS_STREAMS_ADM.SET_UP_QUEUE();
CONNECT sys/xxxxx@db2 as sysdba
GRANT ALL ON scott.dept TO strmadmin;
CONNECT sys/xxxxx@db1 AS SYSDBA
CREATE TABLESPACE logmnr_ts DATAFILE 'D:\oracle\oradata\db1\logmnr01.dbf'
SIZE 25 M REUSE AUTOEXTEND ON MAXSIZE UNLIMITED;
EXECUTE DBMS_LOGMNR_D.SET_TABLESPACE('logmnr_ts');
CONNECT sys/xxxxx@db1 AS SYSDBA
ALTER TABLE scott.dept ADD SUPPLEMENTAL LOG GROUP log_group_dept_pk (deptno) ALWAYS;
CONNECT strmadmin/strmadminpw@db1
BEGIN
DBMS_STREAMS_ADM.ADD_TABLE_PROPAGATION_RULES(
table_name => 'scott.dept',
streams_name => 'db1_to_db2',
source_queue_name => 'strmadmin.streams_queue',
destination_queue_name => 'strmadmin.streams_queue@db2',
include_dml => true,
include_ddl => true,
source_database => 'db1');
END;
CONNECT strmadmin/strmadminpw@db1
BEGIN
DBMS_STREAMS_ADM.ADD_TABLE_RULES(
table_name => 'scott.dept',
streams_type => 'capture',
streams_name => 'capture_simp',
queue_name => 'strmadmin.streams_queue',
include_dml => true,
include_ddl => true);
END;
Did this exp/imp
exp userid=scott/tiger@db1 FILE=dept_instant.dmp TABLES=dept OBJECT_CONSISTENT=y ROWS=n
imp userid=scott/tiger@db2 FILE=dept_instant.dmp IGNORE=y COMMIT=y LOG=import.log STREAMS_INSTANTIATION=y
and then
CONNECT sys/xxxxx@db2 AS SYSDBA
ALTER TABLE scott.dept DROP SUPPLEMENTAL LOG GROUP log_group_dept_pk;
CONNECT strmadmin/strmadminpw@db2
BEGIN
DBMS_STREAMS_ADM.ADD_TABLE_RULES(
table_name => 'scott.dept',
streams_type => 'apply',
streams_name => 'apply_simp',
queue_name => 'strmadmin.streams_queue',
include_dml => true,
include_ddl => true,
source_database => 'db1');
END;
CONNECT strmadmin/strmadminpw@db2
BEGIN
DBMS_APPLY_ADM.SET_PARAMETER(
apply_name => 'apply_simp',
parameter => 'disable_on_error',
value => 'n');
DBMS_APPLY_ADM.START_APPLY(
apply_name => 'apply_simp');
END;
CONNECT strmadmin/strmadminpw@db1
BEGIN
DBMS_CAPTURE_ADM.START_CAPTURE(
capture_name => 'capture_simp');
END;
Here is my problem:
After i configured it the streams still cannot replicate. And when I checked the EM GUI for streams monitoring it displays a broken database link.
Also it says that the database link is not active.
Can anyone please help?
Thanks.

I don't know what Datacomp is, but you should be able
to connect to any non-Oracle database if there is
an ODBC driver for it. You would use Generic
Heterogeneous Services to do this. See the following
link to the documentation for details:
http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96544/gencon.htm#1656
There are also several articles on the Net. Do a google
search on oracle generic heterogeneous services /
connectivity.
Hope this helps.
Kailash.

Difference Between Oracle Replication & Oracle Streams.

Hi All,
I am trying to evaluate Oracle Streams & Oracle Replication technologies.
I need to know what are exact differences between 2 technologies? Advantages (if any) of using Oracle Streams against Oracle Replication.
After reading Oracle Streams documentation, i found that it can capture DML as well as DDL changes, whereas Oracle Replication can capture DML changes.
Can someone provide more information?
Thanks in Advance.
Regards,
Vidyanand

Oracle Replication is designed to replicate exact copies of data sets to various databases. Oracle Streams is designed to propagate individual data changes to various databases. Thus, Replication is probably easier if the end goal is to maintain identical copies of data, where Streams is easier if the end goal is to allow different databases to react differently to data changes.
Oracle Replication is a significantly more mature product-- it is quite usable with older databases. Oracle Streams is a much newer technology and is only usable among different 9i databases. Most competent Oracle developers and DBA's are familiar with Oracle Replication, while many fewer have any real experience with Streams.
The Streams architecture strikes me as a lot more flexible than Oracle Replication's. This leads me to suspect that Oracle will be pushing Streams over Replication in subsequent releases, so I would expect new features in Streams, like DDL changes, that aren't in Oracle Replication. Realistically, though, I don't expect any serious movement away from Replication for at least a few releases, so I wouldn't tend to be overly concerned on this front.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

How to filter the "delete" command in oracle streams ?

How to filter the "delete" command in oracle streams ? (oracle 9i R2 )
Message was edited by:
user507013

Hello
write a procedure doing "nothing" for delete transcation :
connect adminstrm/..
CREATE OR REPACE PROCEDURE write_delete_lcr (
message IN SYS.ANYDATA,
error_stack_depth IN NUMBER,
error_numbers IN DBMS_UTILITY.NUMBER_ARRAY,
error_messages IN EMSG_ARRAY )
AS
s_id sys.anydata ;
ad SYS.ANYDATA;
lcr SYS.LCR$_ROW_RECORD;
ret PLS_INTEGER;
vc VARCHAR2(30);
apply_name VARCHAR2(30) ;
errlog_rec log_errors%ROWTYPE ;
ov2 SYS.LCR$_ROW_LIST;
BEGIN
return;
End;
for your apply do :
BEGIN
DBMS_APPLY_ADM.SET_DML_HANDLER(
object_name => TABLE_NAME,
object_type => 'TABLE',
operation_name => 'DELETE',
error_handler => true,
user_procedure => 'write_delete_lcr',
apply_database_link => NULL);
END;
Hafedh KADDACHI
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Problem in configuring Oracle Streams

Hi Experts,
I am trying to configure oracle streams on oracle 10g through OEM, among the 5 steps, all steps went smooth, the very last step that asks the host username and host password is giving error "Login Error - oracle.sysman.emSDK.admObj.AdminObjectException: ERROR: Wrong password for user"
I want one complete schema to be replicated...
Source :
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OS : Windows
User : administrator/passwd
Dest :
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OS : RHEL 4.7
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Waiting for your reply.
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Oracle Streams roadmap

I heard that Oracle Streams will be not implemented in next database versions, because of GoldenGate. Could you provide me any official link that affirm this information? I try to find on google, but can't find any official documents that say that.

Hi;
Please check below link 5th slide
http://www.oracle.com/technetwork/database/features/availability/312833-129009.pdf
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Oracle Streams b/w MS-Access 2007 and Oracle 10g.

Can we set up Oracle Streams between MS-Access 2007 and Oracle 10g? Ms-Access as source and Oracle 10g as destination database. If so, can any one please give me little heads up with supported doc's or any source of info.

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Doubt in Oracle streams

Doubt in Oracle streams .Can you please help me in understanding the terms
1. Message
2.User defined Event
3. Event
4.Rules
5.Oracle supplied PL/SQL packages
6.Subscriber,Consumer

Hi
Message
A message is the smallest unit of information that is inserted into and retrieved from a queue.
Queue
A queue is repository for messages. Queues are stored in queue tables
Enqueue
To place a message in queue
Dequeue
To comsume a message
Agent
An agent is a end user or the application uses a queue
Thanks
Venkat

Help on Oracle streams 11g configuration

Hi Streams experts
Can you please validate the following creation process steps ?
What is need to have streams doing is a one way replication of the AR
schema from a database to another database. Both DML and DDL shall do
the replication of the data.
Help on Oracle streams 11g configuration. I would also need your help
on the maintenance steps, controls and procedures
2 databases
1 src as source database
1 dst as destination database
replication type 1 way of the entire schema FaeterBR
Step 1. Set all databases in archivelog mode.
Step 2. Change initialization parameters for Streams. The Streams pool
size and NLS_DATE_FORMAT require a restart of the instance.
SQL> alter system set global_names=true scope=both;
SQL> alter system set undo_retention=3600 scope=both;
SQL> alter system set job_queue_processes=4 scope=both;
SQL> alter system set streams_pool_size= 20m scope=spfile;
SQL> alter system set NLS_DATE_FORMAT=
'YYYY-MM-DD HH24:MI:SS' scope=spfile;
SQL> shutdown immediate;
SQL> startup
Step 3. Create Streams administrators on the src and dst databases,
and grant required roles and privileges. Create default tablespaces so
that they are not using SYSTEM.
---at the src
SQL> create tablespace streamsdm datafile
'/u01/product/oracle/oradata/orcl/strepadm01.dbf' size 100m;
---at the replica:
SQL> create tablespace streamsdm datafile
---at both sites:
'/u02/oracle/oradata/str10/strepadm01.dbf' size 100m;
SQL> create user streams_adm
identified by streams_adm
default tablespace strepadm01
temporary tablespace temp;
SQL> grant connect, resource, dba, aq_administrator_role to
streams_adm;
SQL> BEGIN
DBMS_STREAMS_AUTH.GRANT_ADMIN_PRIVILEGE (
grantee => 'streams_adm',
grant_privileges => true);
END;
Step 4. Configure the tnsnames.ora at each site so that a connection
can be made to the other database.
Step 5. With the tnsnames.ora squared away, create a database link for
the streams_adm user at both SRC and DST. With the init parameter
global_name set to True, the db_link name must be the same as the
global_name of the database you are connecting to. Use a SELECT from
the table global_name at each site to determine the global name.
SQL> select * from global_name;
SQL> connect streams_adm/streams_adm@SRC
SQL> create database link DST
connect to streams_adm identified by streams_adm
using 'DST';
SQL> select sysdate from dual@DST;
SLQ> connect streams_adm/streams_adm@DST
SQL> create database link SRC
connect to stream_admin identified by streams_adm
using 'SRC';
SQL> select sysdate from dual@SRC;
Step 6. Control what schema shall be replicated
FaeterBR is the schema to be replicated
Step 7. Add supplemental logging to the FaeterBR schema on all the
tables?
SQL> Alter table FaeterBR.tb1 add supplemental log data
(ALL) columns;
SQL> alter table FaeterBR.tb2 add supplemental log data
(ALL) columns;
etc...
Step 8. Create Streams queues at the primary and replica database.
---at SRC (primary):
SQL> connect stream_admin/stream_admin@ORCL
SQL> BEGIN
DBMS_STREAMS_ADM.SET_UP_QUEUE(
queue_table => 'streams_adm.FaeterBR_src_queue_table',
queue_name => 'streams_adm.FaeterBR_src__queue');
END;
---At DST (replica):
SQL> connect stream_admin/stream_admin@STR10
SQL> BEGIN
DBMS_STREAMS_ADM.SET_UP_QUEUE(
queue_table => 'stream_admin.FaeterBR_dst_queue_table',
queue_name => 'stream_admin.FaeterBR_dst_queue');
END;
Step 9. Create the capture process on the source database (SRC).
SQL> BEGIN
DBMS_STREAMS_ADM.ADD_SCHEMA_RULES(
schema_name =>'FaeterBR',
streams_type =>'capture',
streams_name =>'FaeterBR_src_capture',
queue_name =>'FaeterBR_src_queue',
include_dml =>true,
include_ddl =>true,
include_tagged_lcr =>false,
source_database => NULL,
inclusion_rule => true);
END;
Step 10. Instantiate the FaeterBR schema at DST. by doing export
import : Can I use now datapump to do that ?
---AT SRC:
exp system/superman file=FaeterBR.dmp log=FaeterBR.log
object_consistent=y owner=FaeterBR
---AT DST:
---Create FaeterBR tablespaces and user:
create tablespace FaeterBR_datafile
'/u02/oracle/oradata/str10/FaeterBR_01.dbf' size 100G;
create tablespace ws_app_idx datafile
'/u02/oracle/oradata/str10/FaeterBR_01.dbf' size 100G;
create user FaeterBR identified by FaeterBR_
default tablespace FaeterBR_
temporary tablespace temp;
grant connect, resource to FaeterBR;
imp system/123db file=FaeterBR_.dmp log=FaeterBR.log fromuser=FaeterBR
touser=FaeterBR streams_instantiation=y
Step 11. Create a propagation job at the source database (SRC).
SQL> BEGIN
DBMS_STREAMS_ADM.ADD_SCHEMA_PROPAGATION_RULES(
schema_name =>'FaeterBR',
streams_name =>'FaeterBR_src_propagation',
source_queue_name =>'stream_admin.FaeterBR_src_queue',
destination_queue_name=>'stream_admin.FaeterBR_dst_queue@dst',
include_dml =>true,
include_ddl =>true,
include_tagged_lcr =>false,
source_database =>'SRC',
inclusion_rule =>true);
END;
Step 12. Create an apply process at the destination database (DST).
SQL> BEGIN
DBMS_STREAMS_ADM.ADD_SCHEMA_RULES(
schema_name =>'FaeterBR',
streams_type =>'apply',
streams_name =>'FaeterBR_Dst_apply',
queue_name =>'FaeterBR_dst_queue',
include_dml =>true,
include_ddl =>true,
include_tagged_lcr =>false,
source_database =>'SRC',
inclusion_rule =>true);
END;
Step 13. Create substitution key columns for äll the tables that
haven't a primary key of the FaeterBR schema on DST
The column combination must provide a unique value for Streams.
SQL> BEGIN
DBMS_APPLY_ADM.SET_KEY_COLUMNS(
object_name =>'FaeterBR.tb2',
column_list =>'id1,names,toys,vendor');
END;
Step 14. Configure conflict resolution at the replication db (DST).
Any easier method applicable the schema?
DECLARE
cols DBMS_UTILITY.NAME_ARRAY;
BEGIN
cols(1) := 'id';
cols(2) := 'names';
cols(3) := 'toys';
cols(4) := 'vendor';
DBMS_APPLY_ADM.SET_UPDATE_CONFLICT_HANDLER(
object_name =>'FaeterBR.tb2',
method_name =>'OVERWRITE',
resolution_column=>'FaeterBR',
column_list =>cols);
END;
Step 15. Enable the capture process on the source database (SRC).
BEGIN
DBMS_CAPTURE_ADM.START_CAPTURE(
capture_name => 'FaeterBR_src_capture');
END;
Step 16. Enable the apply process on the replication database (DST).
BEGIN
DBMS_APPLY_ADM.START_APPLY(
apply_name => 'FaeterBR_DST_apply');
END;
Step 17. Test streams propagation of rows from source (src) to
replication (DST).
AT ORCL:
insert into FaeterBR.tb2 values (
31000, 'BAMSE', 'DR', 'DR Lejetoej');
AT STR10:
connect FaeterBR/FaeterBR
select * from FaeterBR.tb2 where vendor= 'DR Lejetoej';
Any other test that can be made?

Check the metalink doc 301431.1 and validate
How To Setup One-Way SCHEMA Level Streams Replication [ID 301431.1]
Oracle Server Enterprise Edition - Version: 10.1.0.2 to 11.1.0.6
Cheers.

Oracle APEX versus Adobe Flex on AIR

Hi
I need advantages and disadvantages Oracle APEX versus Adobe Flex on AIR. I don't know Adobe and need your help. (we fight about our potential customer).
Project:
40 users insert own actvities into database. Supervisor analyse this info (reports, charts). Users connect to app via mobile phone EDGE using laptop.
Regards

Hello again,
From the end-user perspective, FLEX applicatoins are more graphic in nature, in that they are truly graphic. APEX (at least through 3.2) generates a standard HTML type of web page. You can do graphics type of code, but Flex creates applications that will only run with Adobe tools. Flex generates an HTML page, but it calls a .swf file and plays that.
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With APEX, your users will see a standard HTML web-page type of interface, which most users today know how to use and expect.
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Don.
REWARDS: Please remember to mark helpful or correct posts on the forum, not just for my answers but for everyone! :)

Oracle streams versus oracle goldengate

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