Zero Downtime Migration from Oracle to Sybase

Is there any way/ tool to migrate from oracle to sybase with Zero Downtime??
Thanks

Better answered on a Sybase forum I suppose...

Similar Messages

What are the Issues in Migration from oracle 8i to oracle 10g

Hi,
Can you let me know what are the issues that i face when i migrate from oracle 8i to oracle 10g. I will be very thankful if you give me a list of issues that you face while migrating from 8i to 10g

In addition to Max's reply, you must be aware that you have to test your applications agains 10g database before you actually upgrade the database.
If you use CBO, it may produce different execution plans for one query when you run it in 8i and 10g. This may affect your application performances, which you don't like to happen.
Also you have to decide how much downtime you can afford during the migration. Can you afford some downtime and how much? If you can't than this makes the situation more complicated.
How big is your database? You may end up only with simple export/import solution using export import utility.
The bottom line is, whatever you decide, you must test your applications running against 10g database before you actually upgrade your database.

Importing table dump from oracle into sybase

I was wondering if anyone has ever imported a table dump from oracle into sybase. I just tried it and it didn't work. I used TOAD to create my table dump file but when i imprted it into sybase using bcp in i got the following error
cs_convert: cslib user api layer: common library error: The result is truncated because the conversion/operation resulted in overflow.
CSLIB Message: - L0/O0/S0/N36/1/0:

If you are looking for a basic/standard way to exchange data between Oracle and Sybase, use the CSV format.
It is trivial to write a generic SQL*Plus script for Oracle to extract data from a table (or a SELECT) and spool this into a properly formatted CSV file.
It is also just as easy to use Sybase Bulk Copy utility to load that CSV file into Sybase.
There are also alternative methods. One would be to use Oracle's Heterogeneous Services. You can define a database link in Oracle that connects, via ODBC, to Sybase. And using this database link you can push (insert) data into Sybase.

MIgration from Oracle 9.2.4.0 to Oracle 10g Release 2 (10.2.0.1.0)

Hello
We are planning to upgrade and migrate from Oracle 9 to Oracle 10. ( both version on windows)
Would be of great help if I could avail the below information.
Most of the Instance are more than 50 gig
1 Should use a EXP / IMP or Should use DBUA ( prefer a safe method )
2.IF DBUA used any idea how much time it should take .
3.Any other method for upgrade.
We are currently in an analysis phase , we do have some instance that are already 10g but were created from scratch.
Thanks for all your help in advance
Cheers

Most of the Instance are more than 50 gig
1 Should use a EXP / IMP or Should use DBUA ( prefer
a safe method )Use DBUA , it is safer then exp/imp
2.IF DBUA used any idea how much time it should take
It depend on database , machine etc. it should not take more then 2-3 Hr
3.Any other method for upgrade.
I always use manual method and feel manual upgrade is safest.
All details is given in Oracle Documentation
Oracle Database Upgrade Guide
# Virag Sharma

Migration from Oracle 9i database to 10g in ECC5

Hi Experts,
We are planning to move our production system which is currently running ECC5 on AIX OS and Oracle 9i database to AIX OS and Oracle 10g database.
Some doubts regarding the above procedure:
1)Is there any possibility of SAP system migration from Oracle 9i to Oracle 10g. If yes, do we need to perform any addinitional steps for that?
2)If the above condition is OK, then what type of system copy should we need to follow: Homogeneous or Heterogeneous? Heterogeneous system copy is ususally done incase of system copy involving different databases. Does that apply for differnt versions too like Oracle 9i and 10g?
Any response is highly appreciated.
Regards,
Sanjay

If i'm using the dbua then the above issue will be solved by dbua itself?Well, DBUA will only perform a sanity check on your current release and if it doesn't pass it will fail. In other words DBUA will not upgrade your 9i release to the proper compatible release that you have to do before upgrading to 10R2.
Personally I never used DBUA, I always prefer manual upgrades, DBUA is good for you bcz it will not allow you to miss any step while upgrading.
What is the size of the database which you are going to upgrade?
Daljit Singh

Performance issue with view selection after migration from oracle to MaxDb

Hello,
After the migration from oracle to MaxDb we have serious performance issues with a lot of our tableview selections.
Does anybody know about this problem and how to solve it ??
Best regards !!!
Gert-Jan

Hello Gert-Jan,
most probably you need additional indexes to get better performance.
Using the command monitor you can identify the long running SQL statements and check the optimizer access strategy. Then you can decide which indexes might help.
If this is about an SAP system, you can find additional information about performance analysis in SAP notes 725489 and 819641.
SAP Hosting provides the so-called service 'MaxDB Migration Support' to help you in such cases. The service description can be found here:
http://www.saphosting.de/mediacenter/pdfs/solutionbriefs/MaxDB_de.pdf
http://www.saphosting.com/mediacenter/pdfs/solutionbriefs/maxDB-migration-support_en.pdf.
Best regards,
Melanie Handreck

Regarding database migration from Oracle to MS SQL

Hi All,
In my application, the existing database is oracle. we need to migrate from Oracle db to MS SQL.
We need procedure is as below
1.export data from Oracle and keep it in a file.(.dmp)
2.Import data to MS SQL from the exported oracle file.
and vice versa from MS SQL to Oracle.
my question is- is it possible to import .bmp (oracle export data) into MS SQL.
Please clarify me.

There are couple of options to get data from Oracle to MS SQL.
The simplest is to create a linked server in MS SQL that points to Oracle and copy data with a query like select * into my_mssqlTable from oracle.schema.table; via the linked server.
Some data types will not be supported.
That is for one time copy.
If you need a close to real time replication you can use MS replication (I would not recommend because it creates triggers on Oracle tables), or you can use GoldenGate or DataCurrents or other replication products.

Migration from oracle forms to SOA

Hello everybody,
I work in a company that develops a product for financial institutes. we have the product developed using oracle forms, and we want to migrate it to an SOA environnement but i have some questions that i'd be happy if someone answered to them.
1- We want to use oracle soa suite for the migration, in this case should a client, who will buy the application, buy oracle SOA suite. if this is the case, what are the minimum components of oracle soa suite a client should buy.
2- Can we implement a service oriented architecture without using an ESB??
3- What steps could we follow to migrate from oracle forms to oracle SOA suite.
thanks

From my knowledge acquainted through White papers - This is what I think - Even I am in the process of understanding and learning SOA enablement technologies,
Migrating from Forms world to SOA - If there is a real need to migrate the solution to latest technologies then we have to capture the forms logic to redesign in ADF of the Fusion Middleware techstack but if the business need currently works well with the forms based application and we have other system which need integration with this forms based system - You can definetly keep all the hetrogenous systems and architect using SOA to talk to each other - For this it would beneficial to use ESB and BPEL (ESB - To primarily serve as a communication medium between the hetrogenous systems and BPEL to overall orchestrate the process from end to end)
In this way you have all the disparate systems communicating and business running smooth through a SOA based process and in the mean time you start on the reverse engineering process of all the individual systems to migrate to the latest technologies (If there is a business need for the technology shift)
It would be really beneficial to you if you spend some time reading about the SOA and more than technology what exactly is the underlying goal of SOA and then understand what are all the various components of SOA to govern this architecture such as ESB, BPEL, BAM, Rules etc..,
Thanks
Shasikkumar
Edited by: Shasik on 08-Oct-2009 02:45
Edited by: Shasik on 08-Oct-2009 02:46

Replicate the data from oracle to sybase

Hi, I have to replicate the data of some of the tables from Oracle 10g to Sybase.
Here the data from the table is live data (OLTP).
Is there any process like materalized view so that data is refreshed from Oracle to Sybase periodically.
Please let me know the Process for the same.

Hello,
as a starter you may want to read the following Metalink note:
Note 283700.1: How to replicate Data between Oracle and a Foreign Datasource
Please let me know whether this is helpful.
Best regards
Wolfgang Kobarg-Sachsse

Unable to connect to database after migration from oracle 8 to 9i

Hi,
Our applications database was migrated from oracle 8 to oracle9i, The oracle_home path was updated to the newer version.
While accessing the databese using the new setup we are facing SQLLIB mismatch problem
the description of error is as follows
=======================================================
SQL-02107 Program too old for runtime library; please re-precompile it
Cause: Your program was precompiled by an older version of the Oracle Precompilers, which is incompatible with this release of SQLLIB.
Action: Precompile the program with a newer version of the Oracle Precompilers
=========================================================
Please help in this regard
~akhil

Hi Akhil,
Looks like some Tuxedo services are using Pro*C code. Therefore, you would need to recompile your Pro*C code using the newer compiler and then rebuild the Tuxedo servers.
HTH,
Ravi...
Hi,
Our applications database was migrated from oracle 8
to oracle9i, The oracle_home path was updated to the
newer version.
While accessing the databese using the new setup we
are facing SQLLIB mismatch problem
the description of error is as follows
======================================================
=
SQL-02107 Program too old for runtime library; please
re-precompile it
Cause: Your program was precompiled by an older
version of the Oracle Precompilers, which is
incompatible with this release of SQLLIB.
Action: Precompile the program with a newer version
of the Oracle Precompilers
======================================================
===
Please help in this regard
~akhil

Migrate from Oracle Rdb to Oracle 8i

Has anybody out there done a migration from Oracle Rdb (formerly Digital product) to Oracle 8i on a Alpha/OpenVMS platform?
If yes, kindly share your experience.
Thank you very much.

Hi Joyce,
Unfortunately you can't.
Same topic was discussed here:
Oracle RDB to Oracle 10g
Good luck,
Andrei

Migrating from Oracle to portal to Oracle Webcenter

I have been trying to find information on migrating from Oracle portal to Oracle webcenter.
So far I have been unsuccessful in my search.
I have raised this question on My Oracle Support to see if they could assist but their response/only suggestion was to use Oracle Consulting.
Has anybody carried out this migration before?
If so please could you advise and point me in the right direction to where I will find the relevant documentation, or if appropriate please could you describe the migration process.
Many thanks in advance.
Connor

You have to specifiy "Portlets".
Are they PL/SQL portlets , PDK portlets or JSR168 portlets?
PL/SQL portlets are not possible to migrate. You should rewrite them to JSR168 compliant portlets.
PDK portlets should be able to run in webcenter. You can register PDK producers in webcenter enabled application however... If you are using portlet specific API's than the portlets will not work.

Re Migrating from Oracle to DB2

Hi All,
We are migrating from Oracle to DB2, so just wanted to know what will be the impact when we do this, i mean what all necessary steps should be taken to do so. I am a technical consultant involved in this project so not much idea regarding this.
Also please let me know will it effect the custom i mean the Z programs that we have created. Please let me know regarding this.
Thanks and Regards,
Salish.

> We are migrating from Oracle to DB2, so just wanted to know what will be the impact when we do this, i mean what all necessary steps should be taken to do so. I am a technical consultant involved in this project so not much idea regarding this.
A heterogeneous migration (changing database and/or operating system) implies a certified migration consultant doing the migration, otherwise you'll loose support from SAP for problems during the migration and for the target system (http://service.sapcom/osdbmigration --> FAQ).
> Also please let me know will it effect the custom i mean the Z programs that we have created. Please let me know regarding this.
Depending on how you access the data you may need to increase/delete indexes or change the programs to get a better speed.
Markus

Trying to Connect from Oracle to Sybase

Hi
Iam trying to connect from Oracle to Sybase only to retrieve data which is why--Generic COnnectivity. Everything was fine like creating default entries with hsodbc(instead of default tg4sybs) in listner.ora, tnsnames.ora like discussed in this forum. But, the final problem which Iam encountering is:
ERROR at line 1:
ORA-02085: database link HSODBC.US.ORACLE.COM connects to HO.WORLD
Can anyone explain about this problem and solution?? Please help....It is URGENT!
Thanks
Gopikrishna.

This happens with global naming set to true for the database.
How to check if global_names is true or false:
openSQL*plus connection to the database and type
SHOW PARAMETER GLOBAL_NAMES
What to do:
1. you can alter your SQL*Plus session each time you
connect:
ALTER SESSION SET GLOBAL_NAMES=FALSE;
2. you can set global_names to false within the init.ora
of the database
3. you can change the default GLOBAL_NAME HO.WORLD of the
HSODBC system while changing the values in the init.ora
of the hsodbc:
HS_DB_NAME=HSODBC
HS_DB_DOMAIN=us.oracle.com

Migration from sqlsever to sybase ase

Hi,
Has anyone migrated from sqlserver to sybase ase? is this feasible.Thanks.

Hi Ambarish,
Migration to Sybase ASE is very much feasible. Refer following SAP notes which will be useful.
Note 1591424 - SYB: Heterogeneous system copy with target Sybase ASE
Note 1554717 - SYB: Planning information for SAP on Sybase ASE
Regards,
Deepak Kori

Zero Downtime Migration from Oracle to Sybase

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