Improvement of the database from 9i to 11.2.0.4

Hi all

I want to upgrade a database independent 9i to 11.2.0.4. Please suggest prerequisites and post the steps of the task to the high-gradation or share a link.

Can I directly go from 9i to 11.2.0.4?

Import/Export or Rman which will be better please suggest?


Please let us know the steps in the import/export method?


Thank you and best regards,


Arya


Arya,

If you chose to export / import method, you might need to know what is the disadvantage and advantage. If you do the fragmentation of import/export segment will be deleted (it is good), that once we offer the downtime and run two tasks (1.upgrade 2) Fragmentation), but you will need to spend time to complete the upgrade of database.

You may need to consider your database size and the total downtime you get?

We will be able to parallelize export and import and finish faster. example, you can split the table export and import / diagram of first level (if you have a PK/FK relationship you need to retain the same).

Here are the questions in my mind.

(1) 9i database runs in Server A, you want to upgrade this database on the same server? If so have you checked OS and RDBMS software certification?

(2) If you want to be updated on the same server by using export / import, then you have enough space to create the new database and to import?

(3) If you perform import on 11 g that is created on the same server (SERVER A), then you have RAM / CPU to speed up the process?

(4) you can consider database upgrade (on the same server) using the manual upgrade or DBUA, which has no more than space and your upgrade will of--> current in 9.2.0.8 to 11.2.0.4 version

(5) manual / DBUA may take time depends on component installed in this database and the invalid invalid objects (if you have very less upgrade then total until 11.2.0.4 can take 2 hours max).

If you think that you must upgrade the database to the new server, then you may need to review below.

(a) how the data will be moved to the new server? is where your network speed is good?

(b) will pass it data before the upgrade? OR after the upgrade to upgrade?

(c) you can generate waiting for the current version--> that will move data before the end of the upgrade, if once graceful failover you can upgrade of database using DBUA / manual (described in point 5)

(c) If you want to move the database after upgrade--> you can upgrade the database and build the day before for this in the new database on the new server (this may not be a good option)

(d) If you want to move database during the upgrade--> you can export and import (this also takes time and your networks in question).

In my opinion, export and import in a good option if you are very good to have the right amount of downtime and if you want to achieve upgrade and fragmentation at the same time.

Post your question if you have

Thank you

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