Migration from Informix to Oracle

Hi,
Could anybody share the case studies/plan/docs related to migrating data from Informix to Oracle.

Hello,
The Oracle® Migration Workbench Reference Guide for Informix Dynamic Server Migrations is avalaible at
http://download.oracle.com/docs/html/B16022_01/toc.htm
Also, you will find a lot of informations on the Informaix migration technet page at
http://www.oracle.com/technetwork/database/migration/informix-085032.html
Even if a lot of samples are Microsoft SQL Server based, they also apply on an Informix migration as well.
Hope it will help
Regards,
Jean-Patrick

Similar Messages

Migrating from Informix to Oracle 11g

Hi,
I have downloaded the Migration workbench, and the plug-ins Inofrmix7.jar from http://www.oracle.com/technetwork/topics/index-095746.html. Kindly could you please tell me from where i can download the ifxjdbc.jar. Are these files same with different name.
Regards

Hello,
What you need is the Informix Dynamic Server JDBC Driver, version 1.4 JAR file, ifxjdbc.jar.
This driver is shipped with the Informix Dynamic Server software. I am not sure you can download it freely.
Regards,
Jean-Patrick

Migration Issues from Informix to Oracle (datetime format)

Hello, i am performing a Migration from Informix to Oracle, drive by Migration Workbench, i have an error migrating data from datetime and date fields. I suppose its related by datetime and date format, cause the error tells "Incorrect day or month" when i am migrating data from informix. Targets Oracle database date format is DD/MM/YYYY and source`s Informix database date format like MM/DD/YYYY. Is there any way, in OMW, to specify the mask of datetime or date format to convert date strings from informix to oracle format? Or have i got migrate offline and modify control file to do that with sql*loader?
How can i do that?
Example, especify to_date('....', 'MM/DD/YYYY H24:MI:SS') format for migrating informix datetime fields to Oracle.

The problem i have is, several tables witch contains date and datetime fields, at the same table in informix, by migrating drive by omwb to oracle, the date format i receive from informix at reading is DD/MM/YYYY and datetime format receiving is HH24:MI:SS. Migrating date and datetime types from informix to date, both types to date in oracle, i get an error while matching DD = HH24, MM = MI and YYYY = SS where nls_date_format is DD/MM/YYYY and, the same error matching HH24 = DD, MI = MM and SS = YYYY when nls_date_format is HH24:MI:SS.
If i set nls_date_format as "DD/MM/YYYY HH24:MI:SS" i get the same error, cause reading data from informix results in data format "DD/MM/YYYY" for date fields and "HH24:MI:SS" for datetime fields.
I have more than 200 tables in informix with this problem to migrate to oracle, i can solve by migrating offline, modifying datacontrol file to casting to_date format, but over 200 tables, 200 datacontrol files... is there any way for solving that by online migration in omwb?

Loading clob data/Migrating from Informix

Hi,
I wanted to understand a way to insert clob data into the database. I see that you have ways of retrieving and displaying the clobs/blobs in your demo programs. But, how do we go about inserting clob data into a column? And especially, How to accomplish this when the data is stored in the form of a file?
We're in the process of migrating from Informix to Oracle and Informix has this way of storing the clob contents into .EMB files. Moreover, there is no one-to-one correspondence between each clob column and an .EMB file. Informix just knows how to load them up when you use FILETOCLOB(). In similar lines, do we have a way to load clob data from files to start with. And would be glad to get some intricacies on achieving the migration of data from Informix database.
Please send me pointers to docs and procedures, if available.
Thanks for your time
Chandra M.

You can see this sample:
/******* schema ********
create table city
(id integer ,
cimg blob DEFAULT NULL
#include <iostream>
#include <fstream>
#include <occi.h>
using namespace oracle::occi;
using namespace std;
#define BUFSIZE 8192
Environment *env;
Connection *conn;
int res=0;
unsigned int offsetw=1;
unsigned char readbuf[BUFSIZE];
main()
try {
env = Environment::createEnvironment();
conn = env->createConnection("scott","tiger");
catch(SQLException &x)
cout << "Error :" << x.what() <<"\n";
return 1;
try
ifstream infile ("bangalore.jpg", ios::binary);
if (!infile.is_open()) cout << "could not open bangalore.jpg\n";
else
Statement *stmt = conn->createStatement();
stmt->setSQL( "INSERT INTO city VALUES(1, EMPTY_BLOB())");
stmt->execute();
stmt->setSQL("SELECT cimg from city where id = 1");
stmt->execute();
ResultSet *rs= stmt->getResultSet();
rs->next();
Blob blob(conn);
blob = rs->getBlob(1);
blob.open();
do
infile.read((char *)readbuf,BUFSIZE);
res=infile.gcount();
if (!res) break;
blob.writeChunk(res,readbuf, BUFSIZE, offsetw);
offsetw+=res;
} while (1);
infile.close();
blob.close();
conn->commit();
catch(SQLException &x)
cout << "Error :" << x.what() <<"\n";
try{
env->terminateConnection(conn);
Environment::terminateEnvironment(env);
catch(SQLException &x)
cout << "Error :" << x.what() <<"\n";
} /* end of main */

Can Migration work bench be used to migrate from Informix to

Hi,
Can Migration Workbench be used to migrate from Informix to
Oracle?
Thanks,
Ramana
null

Peddu,
Informix support is planned, but will not be available in the
near future.
Less user-friendly script based kits for informix and other
databases can be downloaded from the OTN Migration Technology
section.
Hope that helps,
Turloch
Oracle Migration Workbench Team
ramana peddu (guest) wrote:
: Hi,
: Can Migration Workbench be used to migrate from Informix to
: Oracle?
: Thanks,
: Ramana
Oracle Technology Network
http://technet.oracle.com
null

Migration from Informix 9.4 to Oracle 10g

We have to perform a migration from Informix 9.4 to Oracle 10g. Many tables, many data and many stored procs.
We use the Online mode and the imports finish with any errors, but it has not recovered any stored procedures or we can't view the Informix Stored Procedures in the Source Model in the workbench.
In the importation log appears as no found procedures, but under owner informix are all procedures.
What we can do?

In the 10.1.0.4 version of the workbench we create an informix user who will have all the stored procedures.
If you want these migrated as another user you can right click on the user in the oracle model and rename it for a start.
If this is a large migration, I would recommend the following.
1. generate the ddl for the oracle database.
2. for the users, that will be created, move the objects to the users that you want these in.
3. Make sure that the privileges that a particular user has is appropriate to use the data and execute the stored procedures if necessary.
This tool is not just a one shot deal.. It will bring the informix db over to Oracle, but you need to verify the structure and the logic of the stored procedures as being correct.
Barry

Migrating from Informix 9.4X to Oracle

Hello Everybody,
I am trying to migrate an Informix database to Oracle using Oracle Workbench. I am trying to capture the source DB using the Wizard and when feeding the hostname, port, informix password and server name i am getting the following error "No suitable Driver"
I have also an ODBC configured same way, and it does work, but I can not get this wizard working.
If anybody know what can I do, please tell me. Any help will be appreciated.
Thanks in advance
Alice

Before Migrating From Informix Dynamic Server
To configure an Informix Dynamic Server database for migration:
1.Verify that the Informix Dynamic Server JDBC Driver JAR file, ifxjdbc.jar, is located in the following directory:
On Windows:
OMWB_install_dir\Omwb\drivers
On UNIX:
OMWB_install_dir/Omwb/drivers
2.If necessary, install the Informix Dynamic Server JDBC Driver, version 1.4:
1.Insert the Informix Dynamic Server CD into your CD drive.
2.Follow the instructions in the install.txt file located in the JDCC directory to install the Informix Dynamic Server JDBC driver.
3.Copy the ifxjdbc.jar file of the driver to the following directory:
OMWB_install_dir\Omwb\drivers
On Windows:
OMWB_install_dir\Omwb\drivers
On UNIX:
OMWB_install_dir/Omwb/drivers
3.Ensure that you can connect to the Informix Dynamic Server database from the system where you have installed Migration Workbench.

MIgration from Informix 7.2 to Oracle9i under Solaris

Hi all
I want to know whch version of Oracle migration kit shoul di use for migrating from Informix 7.2 to Oracle 9i. Also does the migration kit support CISAM files in Informix to be migrated to oracle. If not then how can the functionallity of the CISAM be brought into oracle. What are the options for migrating ACE reports from informix to Oracle.
regards
G.Ramji

The Oracle Migration Workbench works with informix 7.3, I am not sure if it will work with informix 7.2.
http://www.oracle.com/technology/tech/migration/mti/index.html
Has a list of 3rd party technologies and products that help in the migration of databases and their applications.
Regards,
Turloch
Oracle Migration Workbench Team

Migration from Progress to Oracle

Could you tell me if there is a tool for migrate from Progress to Oracle?
Thank you for your help.

try ispirer.com who have a tool which does this.
Be aware tho that you may need progress's data server product if you do this and it is expensive to license.
Barry

DB Migration from MYSQL to ORACLE Using Offline Capture

Hi
Am doing a database migration from MySQL to Oracle using SQL Developer (version 2.1.1.64). So far, I've successfully captured the MySQL database and converted it to the Oracle Model. However, when generating offline scripts to create the converted model schema into Oracle DDL scripts it managed to generate SQL to create: 1) User 2) Sequences 3) Tables 4) Triggers and 5) constraints.
It has created the SQL to add the primary key constraints and index constraints. Although it did the foreign key constraints in the SQL, the foreign key constraints seems to have missed the cascading options for the foreign key constraint. I.e. theres no reference of whether the foreign key constraint will restrict on delete or cascade etc.
We have a foreign keys in the MySql database that have different cascading options and these have not being ported over into the migration SQL. Therefore, all the foreign keys generated in the SQL by default are cascade to restrict on delete.
Does 'Generate Oracle DDL' not take into account a foreign key's on delete cascading option?
Any help or information would be greatly appreciated.
Thanks

Hello,
that reminded me for the following thread:
Migration Microsoft SQL Sever 2005 to Oracle 11g cascade on delete problem
That is a similar issue, isn't it?
I opened a bug for that, and it will be fixed in SQL Developer 3.1 (not in any 3.0 Early Adopter version). If you hit the same issue, there is no other way then using the workaround as used in the mentioned thread.
Regards
Wolfgang

Problem while migrating from Sybase to Oracle using Quick Migrate

Hi,
For SQL Developer version 2.1, while migrating from sybase to oracle, Using Quick migrate, during data move step, for the rows having ''(Blank) values in TEXT data type in SYBASE, which is convertd to CLOB in Oracle, the migration for that table terminates at that row.
However, NULL values in Sybase TEXT data type are successfully inserted in Oracle CLOB.
How can we overcome this?

reproduced and see exception in console, bug logged.
Edited by: Jade Zhong on Feb 1, 2010 6:10 PM

Migrating from Sybase to Oracle

Hi!
Can someone tell me, how to migrate from Sybase to Oracle.
Thank U.

Hi,
You don't say if you have used the SQL*Developer migration workbench for the migration so far.
This has a feature for transferring data offline which should do what you want.
Have a look at the documentation linked from -
http://www.oracle.com/technology/tech/migration//workbench/index_sqldev_omwb.html
or at -
http://download.oracle.com/docs/cd/E12151_01/index.htm
SQL Developer User's Guide - section 2.9.1 Transferring the Data Offline
Regards,
Mike

Migrating from Progress to Oracle

Hi,
Wonder if someone's migrated from Progress to Oracle. What tools are available ? what are the constraints/pitfalls/limitations/restrictions ? I need to understand the overall migration process (not having done one yet). What are the tools ? what the procedural steps specifically to go from Progress to Oracle ?
If someone has done such project, I can use some highlights (if you can share your knowledge/experince).
Much appreciate any response.
Rohit.

Here is a bit of an update gathered from my own research on this issue. Hopefully, it can help someone with the same requirement as mine.
1. Oracle Migration WorkBench does NOT have support for Progress yet and according to Oracle sales, it may never be made available. Thus MWB is not an option.
2. Oracle Migration Toolkit is a possibility as it does have support going from Progress 6.x and 7.x to Oracle 7. The limitation here is that you can only go up to Oracle 7 from Progress 6.x or 7.x. In this case, I can migrate to Oracle 7 and then once all is well, upgrade Oracle to 8i or whatever.
3. The last option is, if migration toolkit does not work out, go the traditional route which is to export/extract Progress out into flat files and then load into Oracle using SQL Loader.
RMM.

Steps for migrating from Oracle10g to Oracle 11g

Hi,
Please send me steps to migrate from Oracle10g to Oracle 11g on Redhat Linux x86_64 on RAC with ASM.
Regards,
Tushar

http://download.oracle.com/docs/cd/B28359_01/server.111/b28300/toc.htm

Issue during migrating from Sybase to Oracle using Oracle SQL Developer

I am using SQL Developer v 3.2.20.09 to migrate from Sybase to Oracle Pl/SQL 12c
While migrating the stored procedure the following block did not convert. I got NULL instead of object_id:
Sybase Block:
IF OBJECT_ID(‘dbo.CheckEst’) IS NOT NULL
BEGIN
DROP PROCEDURE dbo.CheckEst
IF OBJECT_ID(‘dbo.CheckEst’) IS NOT NULL
PRINT ‘<<>>’
ELSE
PRINT ‘<<>>’
END
Oracle Block after conversion:
BEGIN
IF NULL/*TODO:OBJECT_ID(‘dbo.CheckEst’)*/ IS NOT NULL THEN
BEGIN
DROP PROCEDURE CheckEst;
IF NULL/*TODO:OBJECT_ID(‘dbo.CheckEst’)*/ IS NOT NULL THEN
DBMS_OUTPUT.PUT_LINE(‘<<>>’);
ELSE
DBMS_OUTPUT.PUT_LINE(‘<<>>’);
END IF;
END;
END IF;
END;
Lines 1 & 4 got converted to NULL. I have many places where such code is written.
Is there any quick way to overcome such an issue? or what needs to be done in such case?

Hi,
You are using an older version of SQL*Developer. Could you download the latest 4.0.2 version available from here -
Oracle SQL Developer
and check if you still have the problem ?
Regards,
Mike

Migration from Informix to Oracle

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