Database Synchronization.

Hi guys,
I have 2 different database systems. The Oracle database located at head office and the MySQL Server located at the clients place. I want to know is there any possibilities:
To automatically update the Oracle Server if the MySQL server is updated, on daily basis (or is synchronization possible). I am working on this project. Help on this will be greatly appreciated.
Thanks in advance.
Best Regards,
Asif

Fahd Mirza wrote:
Can ODBC direct connectivity using Oracle Call Interface (OCI) or JDBC be also used for this purpose?I'm not sure what you mean by "ODBC direct connectivity using Oracle Call Interface (OCI)". OCI only allows you to connect to an Oracle database from a C/C++ program. ODBC drivers for Oracle are generally implemented using OCI. But I'm not sure what that buys you. You can, of course, write an application that connects to both Oracle and MySQL, reads from MySQL, and writes to Oracle, but then you're copying the data over the network twice and you have another moving part to keep track of.
You could potentially load the MySQL JDBC driver into the Oracle database and write a Java stored procedure that connects to MySQL. But that's much less functional that using the Transparent Gateway for ODBC since you would have to write JDBC code to access the MySQL database rather than just using SQL.
Justin

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Database synchronization with MySQL

Hi,
I'm connecting my ADFbc to a MySQL database v5.6; However, I can't seem to find the option that allows me to synchronize my entities to the changes made on the database tables. I am using JDeveloper 12c.
Is the database synchronization option only available for an Oracle database connection?
Imad.

Imad,
database synchronization is available.
Zeeshan Baig's Blog: Connecting MySQL Database with Jdeveloper 11g
Is your project migrated from a older jdev version ?

Advanced Queueing and databases synchronization

What kind of (application) problems could be solved by Advanced Queueing ?
What about databases synchronization ( two Oracle Database Standard Edition One ) ?
TANK YOU !

AQ is intended for messaging. Messaging between applications, messaging between back-end and front-end.
Synchronization would be a poor use of messaging. If you want synchronization then name your version number (all four places) and replication technology and we can point you in the right direction.
For most situations I use:
DBMS_RECTIFIER_DIFF or DBMS_COMPARISON
http://www.morganslibrary.org/library.html

SSAS database synchronization is slow

Hi,
I'm testing the SSAS database synchronization function.
and I found it slow!!!
my server is able to write at 400MB/sec and more, but SSAS is only able to write at 60MB/sec.
I'm testing copying the olap database from 2 instances on the same server, so not have the network involved.
is there any option available around the synchronization process? excepts the compression one.
at the olap service itself? in the config file, is there any config around disk cache for this sync process or something like this?
thanks.
Jerome.

Hi Jerome,
According to your description, you copy the OLAP database from one instance to another instance on the same server, you need to know why SSAS is only able to write at 60MB/sec on the server which is able to write at 400MB/sec and more, right?
Based on my research, synchronization's file copy phase is single-threaded. And due to the single-threaded file copy phase, synchronization might not be the most efficient way of transferring files. So in your scenario, SSAS is only able to write at 60MB/sec
on the server which is able to write at 400MB/sec and more. Here are some blogs about synchronization internal and synchronization performance troubleshooting, please see:
http://www.informit.com/articles/article.aspx?p=1842938&seqNum=3
http://www.informit.com/articles/article.aspx?p=1842938&seqNum=4
Regards,
Charlie Liao
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TechNet Community Support

ESSO-database synchronization.

Hi all,
I'm newbie to Oracle Enterprise Single Sign On.
I need to do database synchronization with ESSO.
I'm using Oracle Database 11.1.0.
Can anyone please share a link or document describing the steps to be followed for database synchronization with ESSO?
Thanks in advance.
Regards,
Swathi.

Hi Rivey,
Thanks a lot for your reply.
I'm able to synchronize oracle database with ESSO i.e,I'm able to login to oracle database directly without giving credentials.
But when I try to extend the schema to Oracle Database I'm getting the following database error :
ORA-12514 : TNS :Listener does not currently know of service requested in current descriptor.
Thanks & Regards,
Swathi.

TP4 ADF BC [BUG] view link are not updated after database synchronization

I have a table with a recursive relationship.
By mystake, I created a recursive foreign key for the same attribute (deptid->deptid instead of deptid->parentdeptid).
I generated entity, view and application module from this schema.
When compiling, errors was produced indicating the problem.
I corrected the problem in offline database, generate the changes into the database successfully.
I ask to synchronize the entity with the database, the changes was identified correctly and a new association was created.
First remark: the old one still there and it was necessary to delete it and rename the new generated one (to be consistent with other name). May be an option to overwriting the old one will be more pleasant, may be asking if the new one has to replace an existing one and show a list of existing ones.
Regenerating the association was correct and one error was removed when compiling again. The error on the view link still there.
I would like to delete the assoc and recreate it from the entity assoc but it was not possible easily because the view link is used in the application module !!!!
It will be nice to permit to regenerate an existing view link from an entity association without deleting it.
May be it is a better way to synchronize ? I would be very interesting to know how to achieve it as the best !

Was the inability to have the synchronization remove the key specific to the existing association's being self-referential, or if your initial association was from DeptId to some other attribute (which you then corrected) would the synchronize have fixed the problem?
The simplest way to achieve what you want given existing features would be to have delete the view link instance, view link, and association, follow by resynchronizing (I believe), then recreating the viewlink and adding back the view link instance.

Rman Duplicate database synchronization problem

Hi
I have the Oracle database 9.2.0.1.0 .I've created Duplicate database on another computer with the same structure and Oracle 9.2.0.1.0 too.
Now, I want to synchronize my duplicate by primary database, and I copied backup of all datafiles & archive logs & and backup that was taken by RMAN, but in the middle of processing I got this error.
printing stored script: Memory Script
set until scn 443620578;
recover
clone database
delete archivelog
executing script: Memory Script
executing command: SET until clause
Starting recover at 31-MAR-03
starting media recovery
channel ch1: starting archive log restore to default destination
channel ch1: restoring archive log
archive log thread=1 sequence=106
channel ch1: restored backup piece 1
piece handle=C:\ORACLE\ORA9I\DATABASE\23EJCO3D_1_1 tag=TAG20030331T114405 params=NULL
channel ch1: restore complete
archive log filename=C:\ORACLE\ORADATA\DELLDUP\ARCHIVE\DELLDUPT001S00106.ARC thr
ead=1 sequence=106
channel clone_default: deleting archive log(s)
archive log filename=C:\ORACLE\ORADATA\DELLDUP\ARCHIVE\DELLDUPT001S00106.ARC rec
id=1 stamp=490112362
media recovery complete
Finished recover at 31-MAR-03
printing stored script: Memory Script
shutdown clone;
startup clone nomount ;
executing script: Memory Script
RMAN-00571:===============================================
RMAN-00569: ===============ERROR MESSAGE STACK FOLLOWS
RMAN-00571:===============================================
RMAN-03002: failure of Duplicate Db command at 03/31/2003 15:20:53
RMAN-03015: error occurred in stored script Memory Script
RMAN-06136: ORACLE error from auxiliary database: ORA-01013: user requested cancel of current operation
What should I Do?
tx

I beleive... and correct me if I'm wrong, but the duplicate command will open the db created with RESET LOGS. Thereby meaning you can't use the archive logs.

Duplicate database synchronize

I have duplicated the database “prod” to “dup”.
$rman target sys/oracle@ORIGDB auxiliary /
RMAN> duplicate target database to DUP nofilenamecheck;
My question is in order to synchronize the duplicate database from time to time, do I need to drop the duplicate database first and then re-run the “RMAN> duplicate target database to DUP;” command?

You don't have to drop the database first.
Shutdown and then start in nomount before you run the duplicate command.

Error Database synchronization fail

Hello, I have a problem with DataGuard. I found the following error-code:
bkkbrs1:tagtrak:/shared/tagtrak/log > dgmgrl
DGMGRL for Solaris: Version 10.1.0.2.0 Production
Copyright (c) 2000, 2004, Oracle. All rights reserved.
Welcome to DGMGRL, type "help" for information.
DGMGRL> connect system/dragon;
Connected.
DGMGRL> show configuration;
Configuration
Name: UltraDgConfig
Enabled: YES
Protection Mode: MaxAvailability
Databases:
trak_bkkbrs1 - Primary database
trak_bkkbrs2 - Physical standby database
Current status for "UltraDgConfig":
Warning: ORA-16608: one or more sites have warnings
The cause of the problem is probably a shutdown of the secondary server. After the server start, it tried to synchronize with the primary server. Later a few days, the synchronization process failed, unable to find the restore point. However, ORACLE process took more than 99% of CPU. What should I do to solve this problem? Could anyone tell me the what I need to proceed. Thank you in advance.

Hi ,
We had a similar error when we logon to SAP BPC 7.5 NW SP06 and it was a program error
SAP suggested to upgrade to SP07. As a workaround you can try restarting your PC for now.
Please let me know which version of BPC you are using . Try executing the below steps you will not see the error further.
1 - Download Patch 1 from Service Market Place.
- Access http://service.sap.com
- Click in Software Downloads;
- Click in Support Packages and Patches;
- Click in A-Z Index;
- Select letter B;
- Click in SAP BPC FOR SAP NETWEAVER;
- Click in SBOP PC 7.5 FOR SAP NW;
- Click in Comprised Software Component Versions;
- Click in SAP CPM BPC CLNT 7.5;
- Click in Win32;
- Download Patch for BPC Client 7.5 SP06;
2 - Uninstall BPC Client and Microsoft Office from the client.
3 - Install Microsoft Office;
4 - Install BPC 7.5 SP6 client;
5 - Install BPC 7.5 SP6 Patch;
After perform the installation please let me know the results.Thanks.
Regards,
Sanjeev
Edited by: sanjeev.s on Jul 5, 2011 1:26 PM

How to do database synchronization

Hi people,
if one database on 4 or 5 machines need to be synchronized after every 30 minutes.
what needs to be done for this?
like lotus notes one mail file created on local pc and one is on server and they synchronize after given time.
thanks,

Hi people,
if one database on 4 or 5 machines need to be synchronized after every 30 minutes.
what needs to be done for this?
like lotus notes one mail file created on local pc and one is on server and they synchronize after given time.
thanks,

Access - Oracle databases synchronization

I want to synchronize my Access database with its Oracle copy. I want the synchronization to occur on a scheduled basis. Is there any oracle tool for this? I want to test this with Oracle database 10g Express Edition.

First, architecturally, this seems a bit suspect. Access should be able to manipulate data in Oracle directly over ODBC, so it isn't normally necessary to synchronize from Access to Oracle. You'd normally have the Access application directly modifying Oracle. If you need to operate in some sort of disconnected mode (i.e. no connectivity between the application and Oracle for large stretches of time), Oracle Lite, TimesTen, or one of Oracle's other embedded databases would generally be easier to use because they've designed synronization capabilities into those products.
If you are going to use this sort of architecture, you could use Heterogeneous Connectivity to create database links from Oracle to the Access database using ODBC. You would then be able to query the Access database from Oracle and extract the changes (assuming, of course, that Access maintains a timestamp that indicates that a row has changed or that you're willing to have Oracle pull over all the records every time and then implement logic in Oracle to compare those records against yesterday's data to look for changes).
Justin

Easy database synchronization

Hi,
I am looking for a method to synchrnize two database servers with the following information.
Two servers: One for front transactional operation, the other for backend only read operation. so the data always flows from front to backend.
Synchronization should be automactic and will happen once a day.
I'd like to judge them based on development cost, degree of implementation, degree of maintenance, etc.
Can you give me any suggestions or recommendation?
Thanks in advance.

That depends on a variety of factors. You'll want to consult Oracle's Software Investment Guide
http://www.oracle.com/corporate/pricing/sig.pdf
particularly where it differentiates among backup, failover, and standby. I would generally interpret this to mean that most people running DataGuard have to license the standby server separately. I understand, though, that this may be one area where sales reps have some flexibility.
Justin

Database synchronization api

Is there a java api that I could use to easily synchronize two MySQL databases?

duffymo wrote:
MySQL tools would be a better idea.
%Well, yeah, but I'm in the need of something that I can use to do the sync programmatically. Oh well, I'll come up with a solution...

Plz Help!!! Urgent Mobile Database and database synchronization

Have any one heard of Funambol? I would like to create a mobile database to be sync with server everyday to update daily task... Is Funambol is the solution for this? Or is there any solution??

Have any one heard of Funambol? I would like to
create a mobile database to be sync with server
everyday to update daily task... Is Funambol is the
solution for this? Or is there any solution??funambol supports for contacts,email ..synchronisation
these are applications which are already in your mobile phone
they use syncml to support this
you need to have funambol server
the process is you embedd your data in syncml
and send it to server which will update your server database
as far as relation database is concerened i fear they haven't implemented any software for it
you can check there website
and they say it can be done
you need to start from scratch i think
and you have to learn all syncml and it's code it's time consuming
depending upon your requirement and time you can decide for some alternative
www.funambol.com

Java code for database synchronization for every transaction

we have 10 stores each one have their own database . transaction happens in stores. If at all any transaction happen first this transaction update should happen it's own data base.After that immediately this updation should happen for central database. All stores can connect to this central database. After updation happen in this central data base this updation should happen for rest of all stores .
this updation should happen for every transaction. Please help me for above scenario.

So you have 11 instances of a database and you want that any changes to one of them should be replicated to the other 10?
Sorry, there isn't a "code snippet" for that. Google for "reliable database replication" to see what you are getting yourself into.

Database Synchronization.

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