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

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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

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

Migrating from MySQL to Oracle 11g

can u tell me the steps to migrating database from MySQL to Oracle using SQL Developer?
I have installed Oracle 11g(11.1.0.6.0) in server and SQl Developer in my local system.
I connected to MySQL and Oracle in SQL Developer and tried to MIgrate everything in MySQL to Oracle using Quick Migrate option.
it took one and half day but didn't work at last...
is there any pre tasks that i need to do before migrating to oracle from MySQL?
and also when i export the MySQL data to Oracle using SQL Developer,it is giving data type mismatch errors like (date, boolean etc...).
please give a reply what i need to do and any refferences also very much appreciated.

hi Turloch ,
I followed the steps mentioned above.
When I right click my MySQL server db Connection and click "Capture MySQL server", it just shows a dialog with "Close" enabled.
after clicking the close button, it gives following error messages.
oracle.dbtools.metadata.persistence.PersistableObject.doInsert(PersistableObject.java:238)
the same error is coming no of times.
Kindly help me in this regard.

Migrating from SQL to ORACLE 11g : naming length Issue using synonyms...

Hi,
In sql I have maximum length of objects is 98 char
now i m migrating it into oracle , i m using synonyms for it ..
it is showing synonyms created ...
but it gets converted into encrypted forms,
due to this i m not able to use actual synonyms that i have created
so tell me how can i create synonyms of more than 30 characters
If this is not possible , then wht else solution by which i can solve ma problem.
please give me solution asap!!!!!!!

Create synonym name with more than 30 character.

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

I had migrated Oracle 10g database from Windows to Oracle 11g Linux

I had migrated Oracle 10g database from Windows to Oracle 11g Linux. The database is performing very slow.
Please guide me where I have to begin (starting point) looking into it.
Some document stated gather system statistics. How to check system statistics is up to date
What are the crucial initialization parameter ?

Hi,
Let me just point you out to the documentation, which may concern you:
I had migrated Oracle 10g database from Windows to Oracle 11g Linux. The database is performing very slow.
Managing Optimizer Statistics
How to check system statistics is up to date
Managing Optimizer Statistics
What are the crucial initialization parameter ?
Configuring a Database for Performance
Thanks &
Best Regards,

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.

Migrating Sybase code to Oracle 11g

Hi All,
We have to migrate Sybase code to Oracle 11g.
When we are doing a SELECT .. INTO in Sybase , even if the query is returning more than 1 row , sybase selects 1 of the rows and populates the variables.
But while migrating this code to oracle, we are getting TOO_MANY_ROWS Exception.
We need to migrate the code from SYBASE to ORACLE without disturbing the logic.
Can someone please tell me the logic applied by SYBASE to pick up the record?
And if someone has faced this issue, then what can be done to resolve this.
Regards,
Riddhisha Khamesra

The result 3 is the last entered record (not the amount of records..).
So the first approach to write a dummy procedure that will select all records in Oracle like:
CREATE OR REPLACE PROCEDURE last_record
v_arg1 OUT NUMBER
AS
BEGIN
SELECT col1
INTO v_arg1
FROM tt_tmp ;
END;
and hopefully returns only the last record will fail with:
SQL> variable outvar number
SQL> exec last_record (:outvar)
BEGIN last_record (:outvar); END;
ERROR at line 1:
ORA-01422: exact fetch returns more than requested number of rows
ORA-06512: at "SYSTEM.LAST_RECORD", line 9
ORA-06512: at line 1
One possible approach to get the last (and only the last) record that was entered into the table is to use rownum:
The select might look like "select col1 from (select col1, rownum from tt_tmp order by rownum desc) where rownum=1;"
So the procedure can be coded as:
CREATE OR REPLACE PROCEDURE last_record
v_arg1 OUT NUMBER
AS
BEGIN
SELECT col1
INTO v_arg1
from (select col1, rownum from tt_tmp order by rownum desc) where rownum=1;
END;
Now calling it in SQL*Plus:
SQL> variable outvar number
SQL> exec last_record (:outvar)
PL/SQL procedure successfully completed.
SQL> print :outvar
OUTVAR
7
The value 7 is the last record I've inserted into my tt_tmp table:
SQL> select * from tt_tmp;
COL1 COL2
1 1
2 2
8 8
7 7

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

Migrating MySQL database to Oracle 11g RAC

Hi,
I would like to migrate an entire database from MySQL to my new Oracle 11g RAC. How do I do it?

Hi Turloch,
I was able to configure SQLDeveloper to connect to Oracle and MySQL.
I am having a hard time migrating data from mysql maybe due to table size. I got mysql tables with more than 20M and the PC am running the sqldeveloper is running out of memory every time I try to migrate the tables.
Can you share some experience migrating from MySQL to Oracle?
Thank You.

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

Migrating from Informix to Oracle 11g

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