Database migration from US7ASCII to UTF8

Hi All,
As a part of Data migration we need to change the existing database
character set from US7ASCII to UTF8. My Database is running on Oracle 9.2.0.6.
In my database I have 5 schemas.
1) Can any body suggest how to migrate the character set from US7ASCII to UTF8?
2) How to migrate all schemas data from US7ASCII to UTF8?
Thanks in advance

You may want to consider the character sets of your clients and the settings used up until now to store and retrieve data. Did you have true ascii-only clients/apps? The general idea is data quality analysis and management. You can find more info about this in the doc in the link given above.

Similar Messages

Problem in Database convertion from US7ASCII to UTF8

Hi,
We are facing the following problem while converting the database from US7ASCII to UTF8:
We have recently changed the database character set from US7ASCII to UTF8 for the internationalization
purpose. We ran the Character set scanner utility and it did report that some data may pose problems.
We followed the the below mentioned process to convert into UTF8 -
1) alter database character set utf8
2) alter database national character set utf8.
Now we find some problem while working with the old data in our application which is java based.
We are getting the following error "java.sql.SQLException: Fail to convert between UTF8 and UCS2: failUTF8Conv".
We further analyzed our data and found some interesting things :
e.g.
DB - UTF8.
NL_LANG also set to UTF8.
Select name from t1 where name like 'Gen%';
NAME
Genhve
But when we find out the length of the same data it show like this
NAME LENGTH(NAME) VSIZE(NAME)
Genhve 4 6
The question is why is it showing length as 4 only and when we try to use a substr function
its extracting like the following :-
select name,substr(name,4,1) from t1 where name like 'Gen%';
NAME SUB
Genhve hve
We have execute the above queries on US7ASCII DB and it is working fine, length it shows 6
and using SUBSTR it extracts just 'h' as well.
We also used dump function on the UTF8 Db for the above query,,this is the result :-
select name,length(name),vsize(name),dump(name) from t1 where name like 'Gen%';
NAME LENGTH(NAME) VSIZE(NAME) DUMP(NAME)
Genhve 4 6 Typ=1 Len=6: 71,101,110,232,118,101
We checked a lot with the data and it seems 'h' (accented e) is posing the problem.
We want to know where is the problem and how to overcome this.
Further, we tried all of the following :
1)
Export Server: US7ASCII
Export Client: did not set NLS_LANG / NLS_CHAR, so presumably US7ASCII as well
Import Client: did not set NLS_LANG / NLS_CHAR, so presumably US7ASCII as well
Import Server: UTF8
RESULT: Acute e became h
2)
Export Server: US7ASCII
Export Client: did not set NLS_LANG / NLS_CHAR, so presumably US7ASCII as well
Import Client: NLS_LANG=AMERICAN_AMERICA.UTF8 and NLS_CHAR=UTF8
Import Server: UTF8
RESULT: IMP 00016 error
3)
Export Server: US7ASCII
Export Client: NLS_LANG=AMERICAN_AMERICA.UTF8 and NLS_CHAR=UTF8
Import Client: did not set NLS_LANG / NLS_CHAR, so presumably US7ASCII as well
Import Server: UTF8
RESULT: Acute E became h
4)
Export Server: US7ASCII
Export Client: NLS_LANG=AMERICAN_AMERICA.UTF8 and NLS_CHAR=UTF8
Import Client: NLS_LANG=AMERICAN_AMERICA.UTF8 and NLS_CHAR=UTF8
Import Server: UTF8
RESULT: Acute e became h
5)
Tried using Update sys.props$
set value$='UTF8'
where name='NLS_CHARACTERSET'
RESULT: Acute e shows properly but it gives problem in the application
"java.sql.SQLException: Fail to convert between UTF8 and UCS2: failUTF8Conv"
Looking further it was observed the following:
when you try this command on a column 'city' in a table which contains 'Genhva' (note the acute e after n), it shows
command: select length(city), vsize(city),substr(city,4,1),city from cities
Result: 4 6 hva Genhva
if you see the value of substr(city,4,1) , you will see the problem. Also note that the length shows 4 and size shows 6. Moreover, when these records are selected through JDBC Driver, it starts giving problems.
6)
Actually the above (point no. 5) is similar to changing the character set of the database with 'ALTER DATABASE CHARACTER SET UTF8'. Same problem is observed then too.
7)
We have also tried to with another method, that is by changing the third byte of the export file which specifies the character set, to the UTF8 code by editing the export file with a Hexdecimal editor. After import the same problem has been observed as defined in (5) and (6) above.
We have no more ideas how to migrate without corrupting the data. Of course we have known the records where these characters occur through the Oracle's cssacn utility but we do not want to manually rectify each and every record by replacing it with an ASCII character. Any other idea as to how this can be accomplised?
Thanx
Ashok

The problem you have is that although your original database is defined as US7ASCII, the data it contains is more than is covered by this code page (as the reply on Sept 4 to the previous posting already said).
This has probably happened because the client was also defined as US7ASCII, and when the DB and client are defined as having the same character set no conversion (or checdking) takes place when data is passed between them. However if you are using a Windows client then it will in fact be using Windows code page 1252 (Latin-1) or similar, and this allows many more characters, including h (accented e). So a user can enter all these characters and store them in the database, and similarly read them from the database, because data transfer is transparent.
When you did ALTER DATABASE CHARACTER SET UTF8 this will only change the label on the database, but not affect the contents. However only part of the contents are valid UTF8, any character above 7F (like h) is invalid. If your original client now uses the database, code page transformation will take place because the client and DB have different character sets defined. The invalid codes can then cause problems.
Without being able to explain what has happened in detail, it may help to see what your h (dec 232, x'E8') looks like. The actual data has not changed (you can see this as it is reported as 232). However the binary code there (11101000) is invalid UTF8. UTF8 encodes a character in 1 to 4 bytes, and the first bits in a UTF8 character tell how many bytes it uses. 0xxx tell it is one byte (same as the corresponding USASCII character), 110x that it uses 2 bytes, 1110 that it uses 3 bytes etc. So if you interpret what is there as UTF8 it looks like the first byte of a 3-byte character, which explains why the substringing is giving you the other 2 bytes as well.
Can you fix this without losing data? I believe yes. First you should check what other characters are being flagged by the scan. See if these are contained in another standard character set. If they are only Western European accentet characters then WE8ISO8859P1 is probably ok, but watch out for the euro sign which Windows has at x'80', an undefined character in ISO8859-1.
You can see the contents of the Microsoft Windows Codepage 1252 at: http://www.microsoft.com/globaldev/reference/sbcs/1252.htm
For a listing of the US-ASCII defined characters see http://czyborra.com/charsets/iso646.html and for ISO 8859-1 see http://czyborra.com/charsets/iso8859.html#ISO-8859-1
If all is well, you can first ALTER DATABASE CHARACTER SET to WE8ISO8859P1. This will not change any data, but ensure that all the data gets exported. Then export the DB and import it to a UTF8 DB. This will convert the non-US-ASCII characters to Unicode. You will also have to change the clients character set to something other than USASCII or they will just see ? for the other characters.
Good Luck!

Clarification on Character set migration from US7ASCII to UTF8

Hi,
I need clarification on the below.
I need to migrate the database from US7ASCII to UTF8.
For this I ran csscan for user "TEST" as well as against full database.
Below log is the csscan output against full database. but my application is depended on TEST schema only. Shall I need to migrate SYS objects data as shown below or it's not required?. If required how to migrate these objects data?
Looking forward you help.
USER.TABLE Convertible Exceptional
SYS.METASTYLESHEET 58 TEST.Table_1 9 0
TEST.Table_2 11 0
TEST.Table_3 17 0
TEST.Table_4 11 0
[Distribution of Convertible Data per Column]
USER.TABLE|COLUMN Convertible Exceptional
SYS.METASTYLESHEET|STYLESHEET 58 0
Thanks,
Sankar

I think you need to migrate all schemas data not only one application schema because
the database character set is common to all CHAR, VARCHAR2, LONG and CLOB colums
for any tables in any schema.
In your case (US7ASCII to UTF8), you need to use export/import because:
Another restriction of the ALTER DATABASE CHARACTER SET statement is that it can be used only when the character set migration is between two single-byte character sets or between two multibyte character sets. If the planned character set migration is from a single-byte character set to a multibyte character set, then use the Export and Import utilities.
(see http://download-uk.oracle.com/docs/cd/B10501_01/server.920/a96529/ch10.htm#1009904)

Oracle E-business suite database migrate from AIX to Linux

Oracle 11i application database migration from single Aix instance to oracle Linux cluster RAC.
What is the easy way to migrate?
Migrate single instance from aix to linux cluster.
OR
Migrate single instance from aix to linux cluster RAC.
We have installed oracle Linux cluster.
Please help me which way I can go with RAC.
Thanks
Prince

Migrating to a single instance will be the simplest. The migration itself will not be much different between the two because you're migrating from one platform to another. The options you have available are, the traditional IMP/EXP, datapump, and RMAN to migrate to either a standalone or RAC environment. The difficulty will be in creating a RAC environment and a little a few extra steps in the RMAN restore. Working with RAC will make things harder, but the actual migration is similar. The steps to IMP/EXP, whether it's traditional or Datapump will be no different. However, standing up a RAC database will be.

Moving from US7ASCII to UTF8

We are using "standard installed" database. The language only used is (US) english. We are going to add texts in different languages to the database scheme. It means that in some table we want to keep a column that is able to store text in different languages. The answer is UTF8. My questions are follow:
* How i migrate my database to UTF8 character set ?
* Can i leave it as it is and use NVARCHAR2 with UTF8 character set for multilanguage columns ?
* What is happening to search indices ? Do i have to build special indices for tables with NVARCHAR2 columns in UTF8 if i want to search by the column or it works like ordinal string search index ?
* How i store or read data on client/front end ? In what format must data come to Oracle database ? I am talking about Windows WIDE CHAR format mostly.
Thank you.

Dear Sir
I am glad to see that you sincerely wanted to help me. But to make your help efficient it is very desirable to read a question first! I asked about US7ASCII to UTF8 migration and not anything else. As well the rest of questions were also very important and related to the subject. Therefore i will be glad to accept any help, also yours, in the case it will relate to the subject of the question.
Thank you for your time.
P.S. Would you be so kind and left your attributes in place of BT unregistered.
BT is a name of cigaretts

Was this database migrated from dev or prod?

We have several environments (e.g., development, staging, test, training, production). When migrating a production database to a new version of SQL, we also migrate the related environments. Sometimes the developers want a refresh from production in
development. Sometimes they want the old development database. A question came up about the source of a development database - was it from dev or production?  If I'm lucky, the information I want is listed in the following query.
SELECT rh.[restore_date], rh.[destination_database_name], bs.server_name, bs.database_name
FROM [msdb].[dbo].[restorehistory] rh
LEFT JOIN [msdb].[dbo].[backupset] bs ON rh.backup_set_id = bs.backup_set_id
WHERE bs.server_name <> @@SERVERNAME OR rh.destination_database_name <> bs.database_name
If I'm not lucky, the history is no longer present. This is often the case because we don't keep a lot of history. Is there any other metadata that will help me identify where a database came from? Should I insure that the most recent
restore record for an existing db is not cleaned out, no matter how old it is?  Thanks.
Randy in Marin

I was hoping that the source would have been hidden in a system table some place - reliable and no extra work/politics. I think the answer is looking like, "The information is gone - it can't be done." Yes, a new business process
would certainly provide the information.  However, changing organizational behavior is not for the faint of heart.
I think it would be easier to update the history cleanup.  This would mean that I can't use msdb.dbo.sp_delete_history as it currently exists. It has very simple logic. I might create a version of my own that keeps the records I want.
https://connect.microsoft.com/SQLServer/feedbackdetail/view/967074/sp-delete-backuphistory-option-to-exclude-special-old-records
Not a bad idea. They could put a "keep" flag on the row and let you set it.
Or you can copy out the rows you like and maintain your own table with your own logic.
It would certainly be nice if every backup kept a record of its own source and wrote that to some read-only location in the restored database, but this does not seem to be the case. Maybe I should file a connect suggestion on that - only my perception
and experience with connect is to not waste my time, most suggestions are misunderstood and rejected out of hand.
But what I was suggesting about the business process contents is that it is already there - any dev source database has developer IDs in it that never occur in production, and production databases have only production IDs that you might see are newer than
anything currently in dev. So no change in business process would be required, just some knowledge of what's already there and a couple of queries to count some differentiating factors.
Josh

Oracle10g database migration from MID to MIT

Dear all,
im currently doing the migration from production server (MID) to dev server (MIT).
i've use 2 method below but all encounted the error and fail to import. hope some one can point the error and explain the some of my problem.
1. used oracle exp and imp
full database.
- i've exp the full database and drop all the current R3 table by following selection syntax.
select 'drop table sapsr3.' ||table_name|| ';' from user_table.
- but some table fail to drop because some of the table name consist '//'
- after doing imp, R3 cannot be start and keep show yellow status.
- log file display 'waiting for termination icman'
Q1. is that the method i did is correct?
Q2. how do i drop the table which start from '//'
single table.
- i've exp a single table from database then imp.
- while i check on SQL+. the table exist and consist data.
- but when i check on GUI. the table doesn't exist.
Q3. is that the table imported is only import to oracle. but not R3?
Q4. how to make it completely update to R3?
2. used SAP brtools.
full database.
- i've export a complete database backup(MID) by selected
backup and recovery -> database backup -> backup device type (disk)
- then import the backup to MIT
restore and recovery->while dabase reset->select consistent database backup()->
check the status of database files()->restore control files and redolog files()->
restore data files() ->reset program status()
note: () means the whole process.
Q5. database restored from MID to MIT, but the MIT could not start R3. may i know what i miss to cross R3 could not start?
single table
- export single table thru segment management-> export table from MID.
- import single table thru segment management-> import table to MIT.
Q6. error show oracle_home didnt set. but i've check on system enviroment and oracle_home is there. and i double confirm the variable by enter 'set'. Oracle_home still there. should i set oracle_home in cmd again?
note: pls state which method is preferable and which question is answering.
thanks and appreciate from yours reply.

finish patch the r3load and add the dbs/ora/tnsname = <SID> in the tnsname.
but the error is still the same.
INFO 2009-08-17 18:48:29
Output of C:\usr\sap\MID\SYS\exe\uc\NTI386\R3load.exe -testconnect is written to the logfile R3load.exe.log.
WARNING 2009-08-17 18:48:29
Execution of the command "C:\usr\sap\MID\SYS\exe\uc\NTI386\R3load.exe -testconnect" finished with return code 2. Output:
sapparam: sapargv( argc, argv) has not been called.
sapparam(1c): No Profile used.
sapparam: SAPSYSTEMNAME neither in Profile nor in Commandline
C:\usr\sap\MID\SYS\exe\uc\NTI386\R3load.exe: START OF LOG: 20090817184829
C:\usr\sap\MID\SYS\exe\uc\NTI386\R3load.exe: sccsid @(#) $Id: //bas/700_REL/src/R3ld/R3load/R3ldmain.c#20 $ SAP
C:\usr\sap\MID\SYS\exe\uc\NTI386\R3load.exe: version R7.00/V1.4 [UNICODE]
Compiled Jul 7 2009 08:04:27
C:\usr\sap\MID\SYS\exe\uc\NTI386\R3load.exe -testconnect
DbSl Trace: Cannot connect: dbs/ora/tnsname in profile missing
(DB) ERROR: db_connect rc = 256
DbSl Trace: Cannot connect: dbs/ora/tnsname in profile missing
(DB) ERROR: DbSlErrorMsg rc = 29
C:\usr\sap\MID\SYS\exe\uc\NTI386\R3load.exe: job finished with 1 error(s)
C:\usr\sap\MID\SYS\exe\uc\NTI386\R3load.exe: END OF LOG: 20090817184829
ERROR 2009-08-17 18:48:29
CJS-30023 Process call 'C:\usr\sap\MID\SYS\exe\uc\NTI386\R3load.exe -testconnect' exits with error code 2. For details see log file(s) R3load.exe.log.
ERROR 2009-08-17 18:48:29
FCO-00011 The step testDatabaseConnection with step key |NW_Export|ind|ind|ind|ind|0|0|NW_ABAP_Export_Dialog|ind|ind|ind|ind|4|0|NW_ABAP_Export|ind|ind|ind|ind|0|0|testDatabaseConnection was executed with status ERROR .
INFO 2009-08-17 18:48:56
An error occured and the user decide to stop.\n Current step "|NW_Export|ind|ind|ind|ind|0|0|NW_ABAP_Export_Dialog|ind|ind|ind|ind|4|0|NW_ABAP_Export|ind|ind|ind|ind|0|0|testDatabaseConnection".

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.

Resources and public folder database - migration from 2007 to 2013

We migrated our resource mailboxes thru the move mailboxes in 2013 EAC but now we're at the point of decommissioning our 2007 servers. Before the actual decommission we stopped all 2007 services and dismounted all 2007 databases. Once we did
this the resources would no longer work - errors pertaining to cannot directly book the resource.
I had to bring up the public folder database for the moved resources to work again. We do not use public folders any longer so we did not do any type of public folder migration. Do I need to do this for the resources to work?

Hi,
Could you please tell me your Outlook version?
I saw someone got the following error when he tried to book resource after migrating from Exchange 2007 to Exchange 2010, if Outlook version is Outlook 2007. But Outlook 2010 worked well.
"Cannot directly book a resource for this meeting."
Please switch between online and cached mode to check the result. And please check if this issue occurs in OWA.
If possible, please use Outlook 2010 to check the result.
Best regards,
Belinda
Belinda Ma
TechNet Community Support

APEX Database migration from HP-UX to Linux

Hi,
we are migrating database from oracle 10.2.0.3 on HP-UX to 10.2.0.4 on Linux. We have Apex 3.1.2.00.02 installed in 10.2.0.3.
Could anyone please provide me any checklist or relevant documentations to migrate database which contains APEX. we are planning to use export/imp
Please help.
Thanks,
Krish

First thing I would do is export all of your applications just to be safe. If you're doing a full database export / import, I believe it will work. If you're going schema by schema, it will not.
The cleanest way is to do a fresh install in your new database...
Tyler Muth
http://tylermuth.wordpress.com
"Applied Oracle Security: Developing Secure Database and Middleware Environments": http://sn.im/aos.book

Oracle 10g RAC Database Migration from SAN to New SAN.

Hi All,
Our client has implemented a Two Node Oracle 10g R2 RAC on HP-UX v2. The Database is on ASM and on HP EVA 4000 SAN. The database size in around 1.2 TB.
Now the requirement is to migrate the Database and Clusterware files to a New SAN (EVA 6400).
SAN to SAN migration can't be done as the customer didn't get license for such storage migration.
My immediate suggestion was to connect the New SAN and present the LUNs and add the Disks from New SAN and wait for rebalance to complete. Then drop the Old Disks which are on Old SAN. Exact Steps To Migrate ASM Diskgroups To Another SAN Without Downtime. (Doc ID 837308.1).
Clients wants us to suggest alternate solutions as they are worried that presenting LUNs from Old SAN and New SAN at the same time may give some issues and also if re-balance fails then it may affect the database. Also they are not able to estimate the time to re-balance a 1.2 TB database across Disks from 2 different SAN. Downtime window is ony 48 hours.
One wild suggestion was to:
1. Connect the New SAN.
2. Create New Diskgroups on New SAN from Oracle RAC env.
3. Backup the Production database and restore on the same Oracle RAC servers but on New Diskgroups.
4. Start the database from new Diskgroup location by updating the spfile/pfile
5. Make sure everything is fine then drop the current Diskgroups from Old SAN.
Will the above idea work in Production env? I think there is a lot of risks in doing the above.
Customer does not have Oracle RAC on Test env so there isn't any chance of trying out any method.
Any suggestion is appreciated.
Rgds,
Thiru.

user1983888 wrote:
Hi All,
Our client has implemented a Two Node Oracle 10g R2 RAC on HP-UX v2. The Database is on ASM and on HP EVA 4000 SAN. The database size in around 1.2 TB.
Now the requirement is to migrate the Database and Clusterware files to a New SAN (EVA 6400).
SAN to SAN migration can't be done as the customer didn't get license for such storage migration.
My immediate suggestion was to connect the New SAN and present the LUNs and add the Disks from New SAN and wait for rebalance to complete. Then drop the Old Disks which are on Old SAN. Exact Steps To Migrate ASM Diskgroups To Another SAN Without Downtime. (Doc ID 837308.1).
Clients wants us to suggest alternate solutions as they are worried that presenting LUNs from Old SAN and New SAN at the same time may give some issues and also if re-balance fails then it may affect the database. Also they are not able to estimate the time to re-balance a 1.2 TB database across Disks from 2 different SAN. Downtime window is ony 48 hours.Adding and removing LUNs online is one of the great features of ASM. The Rebalance will be perfomed under SAN. No downtime!!!
If your customer is not entrusting on ASM. So Oracle Support can answer all doubt.
Any concern .. Contat Oracle Support to guide you in the best way to perform this work.
>
One wild suggestion was to:
1. Connect the New SAN.
2. Create New Diskgroups on New SAN from Oracle RAC env.
3. Backup the Production database and restore on the same Oracle RAC servers but on New Diskgroups.
4. Start the database from new Diskgroup location by updating the spfile/pfile
5. Make sure everything is fine then drop the current Diskgroups from Old SAN.
ASM Supports many Terabytes, if you need to migrate 3 Database with 20TB each using this way described above would be very laborious .. .. So add and remove Luns online is one feature that must work.
Take the approval from Oracle support and do this work using the ASM Rebalance.
Regards,
Levi Pereira

What are the risk involved in Database Migration from Oracle 7 to oracle10G

HI,
As a business requirement me are need to migrate our current production database (Oracle 7.3.4) to Oracle 10G R2.
I need to understand the Risk involved in doing so and corrective action required.
Your small input is greatly appreciated.
Thanks in advance.
Regards,
Vijay

As a business requirement me are need to migrate our current production database (Oracle 7.3.4) to Oracle 10G R2.
There is no risk.
but you can't upgrade directly from 7 to 10g.
you need to upgrade first 7 to 9 then 9 to 10g ( i would recommend to go with 11g)
Or
If database size is small the best is EXPORT /IMPORT. easy fast safe.
http://tahiti.oracle.com ===check the upgrade guide for more details.
You need to test the completely upgrade process on TEST eviourment before doing anything in production.
becuase a lots of changes between two database version.
1. You may be face "Performance" issue after upgrade. so need to check properly.
Regards,
Taj

Database migration from Tru64 to HPUX on 10g

We'll be migrating off of Tru64 to HP-UX on Oracle 10g. We'll be using data pump to export the Tru64 version and data pump to import into the HP-UX release. All of the documentation that we've found says to do a full export and a full import. Full exports include the SYSTEM schema in addition to the application owner. Our plans are to do the following:
1) perform a full export from the Tru64 server
2) create a new instance on the HP-UX side, that includes creating all of the tablespaces
3) perform a full import into the HP-UX side
Because we have performed a full export, when we do a full import we get warnings about the SYSTEM objects existing. What do we do about the warnings?
What is the best practice for full database imports using data pump?
Are there other considerations we should be aware of?
Thanks in advance.

I remember system schema issues from the old import and export, there is normally no problem from memory .. but i am thinking from memory.
Perhaps worth noting the rowcounts and objects before and after your import just in case anything new has appeared ... i seem to remember some related to sqlplus.
I always think exports are easy ... imports are harder.
Also if your imports are giving you time problems there may be some things that can help speed it up: There are others who could give better advice on this.
See for example here [http://www.dba-oracle.com/t_import_impdp_import_performance_speed.htm] ... i came accross this with a quick google.
Tuning a temporarily large db_cache_size / sga_target / pga_target might be helpful, but if paging is caused this is counter productive.
The parallel option on impdp might be helpful.
The following are complicated and probably should only be tried if you need the speed:
- Temporarily setting larger tables with more than one index to cache before export and changing back afterwards.
- To go really on the knife-edge move your redo logs to a ramdisk temporarily to get a little extra speed , but this is a very very very dangerous practice. (I am nutter who has done this!)

Siebel Database migration from IBM DB2 to Oracle

Hi ,
We are planning to migrate Siebel / OBIEE db form the existing DB2 to Oracle db. Can some please help us, what are the points we need to consider.
Also please let us know if you find any hurdles during the same.
Regards
Muni

Hello Kumar
Typically for Packaged Apps you don't have to migrate database objects like stored procedures, triggers, views etc as the app will have its own database specific seed schema. What needs to be migrated/ported is the customizations done to the app in the source environment and the transaction data to the target and ofcourse a thorough testing is recommended.
So the migration process typically is :
1. Install Siebel for Oracle (schema and data access layer).
2. Implement customizations in Oracle.
3. Migrate transaction data from source DB to Oracle.
4. Test.
Oracle has a group that can help with this process. Let me know and I will put you in touch with them.
Regards
Prakash

Siebel database migration from Sql Server 2005 to Oracle 11g RAC.

Hi,
We would like to migrate our Siebel database from Sql Server 2005 to Oracle 11g RAC. Can you suggest the best way to do that ?
The current configurations are:
Application : Siebel
database : SQL Server 2005
The hardware can be changed if needed. Can you please suggest the best approach ?
Thanks,
Naveen.
Edited by: Naveen Kumar C on Mar 18, 2011 9:10 PM
Edited by: Naveen Kumar C on Mar 18, 2011 11:44 PM

Hi Naveen,
We would like to migrate our Siebel database from Sql Server 2005 to Oracle 11g RAC. Can you suggest the best way to do that ?You will need much more which suggestions.
You will need a Siebel professional which has done this type of migration. Migrating the Database is not a task so hard, after migrating your environment should be functional and healthy it is usually the task problematic.
The hardware can be changed if needed. Can you please suggest the best approach ?We can recommend the minimum recommended, but this documentation already does, you need to do a analysis on your environment and ask a vendor Siebel tell the which is recommended for you and how to find the best "number" for you, in your case is very hard because everything changes.
Check this Step-by-Step
Migrating a Microsoft SQL Server Database to Oracle Database 11g
http://st-curriculum.oracle.com/obe/db/hol08/sqldev_migration/mssqlserver/migrate_microsoft_sqlserver_otn.htm
Regards,
Levi Pereira

Database migration from US7ASCII to UTF8

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