I want to migrate database server from Oracle 9i to Oracle 11g (WebLogic version is 8.1 SP5).
After migration, WebLogic version will remain the same. Only database gets changed.
How can I achieve this?
Is taking DB dump before migration and importing dump after migration enough for this task?
Or do I need to do other things as well?
Thanks.
Yes, most likely a DB dump will do the trick. Oracle data types are backward compatible, so, you are covered.
Related
We are using Oracle docker image for Oracle database 12.2.
By default it seems the Multitenant feature is enabled.
Is there any way it can be disabled?
We have only one application to support and do not want to create pluggable database for that.
Any help greatly appreciated!
Thanks
Fair warning:
The non-CDB architecture is desupported starting in Oracle Database 20c.
You can use the CDB architecture with one user-created PDB without a Multitenant license. From Oracle Database 19c, this extended to three user-created PDBs in a CDB.
The short answer is there's no way to disable the CDB architecture.
To switch to it, you'll need to install a new non-CDB database. Then migrate the data from your existing database to it. For example with Data Pump export/import or some other data replication/migration tool.
There is one scenario where in our target is to migrate oracle database to Azure SQL DB.
Currently I am evaluating multiple options to migrate the existing Oracle Db to the Azure SQL DB, for the same reason I could not decide how to handle this situation where in the source DB i.e. Oracle is having transaction data which is a kind of incremental load.
Should this can be handled with mere replication of DB? or performing some data migration steps would help me ? Here i can think of earlier approach as easier approach where in i need not to worry about the transaction updates happening inside the data.
Considering this which utility i should use to perform this kind of activity?
You can replicate your Oracle database to Azure using Oracle Golden Gate as a way to migrate your Oracle database to Azure SQL. Striim seems to be another good tools to move your database to Azure SQL.
I think you may use the SQL Server Migration Assistant (SSMA) for Oracle.
SQL Server Migration Assistant (SSMA) for Oracle consists of a client application that you use to perform a migration from Oracle to SQL Server and Azure SQL DB. It also contains an extension pack that supports data migration and the use of Oracle system functions in your migrated databases.
SSMA can converts the transaction processing:
For more details, you can see:SQL Server Migration Assistant (SSMA) for Oracle
Hope this helps!
I've spent 2 days to sync postgresql database to oracle. Read few books, googled many times..
1. I have setup PostgreSQL on CentOS 6.5 (A) also installed oracle database on this VPS. copied GoldenGate to it.
2. I have already setup 2 oracle VPS using Goldengate and setup as Source (B) and Target (C). I'm trying to sync PostgreSQL to Target VPS.
3. GoldenGate runs on A server without error.
The problem is when I setting up it requires ODBC config (page 14). I'm new to PostgreSQL so little confusing for this..
Also when I google i find only to postgresql from oracle.
Main doc I'm following is http://docs.oracle.com/cd/E35209_01/doc.1121/e29642.pdf
Actually I have found Oracle Golden Gate new features https://blogs.oracle.com/dataintegration/resource/2013-DIFamily/OGG_WinUnix_Rel_Notes_11.2.1.0.7.pdf
Oracle Golden Gate don't support what I want to do.
They say:
Oracle GoldenGate introduces support for PostgreSQL. This support includes the mapping, manipulation,
filtering, and delivery of data from other types of databases to a PostgreSQL database. Oracle GoldenGate
does not support the capture of data from PostgreSQL to other PostgreSQL databases or to other kinds of
databases.
GoldenGate does not support Postgres as a source - only target.
Check out Attunity for what you are trying to do.
Postgres support was only for delivery in Oracle GoldenGate 12.2. Oracle is working on a full capture/delivery support for Postgres. It will be out in a later release post 19c. Please check the OTN website for versions.
Just wondering how do I check if a backup is running on an Oracle database. I am on version 11.2.0.2
That depends on how you are doing backups. Are you using RMAN? If you are using recovery manager you can use the corresponding database views like V$RMAN_BACKUP_JOB_DETAILS or V$RMAN_BACKUP_SUBJOB_DETAILS
i have a server (HP-UX) installed with Oracle 10g and several databases on it.
I've been asked to make dumps from these tables for a Oracle 8i database. In order to do this, i need to use the 8i version of the EXP (export) tool of Oracle.
It is still installed on my server but when i want to use it, i get the following error :
EXP-00056: ORACLE error 12705 encountered
ORA-12705: Cannot access NLS data files or invalid environment specified
I presume some files are missing or maybe one of the folder is not in the PATH but i can't find and i really don't want to break the 10g installation.
Someone knows how to do ?
Thanks
Install a 10G client on another system, without modifying the 8I database server,
and connect from the client to the 8I database. Use the export utilities on
the client to generate the export file.