Cloning Oracle database using expdp/impdp
How do I clone Oracle database using expdp/impdp?
What is the difference between clonign database and exporting it when using expdp/impdp?
What is the difference between clonign database and exporting it when using expdp/impdp?
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There really isn't a 'best' way. It all depends on the specific databases in question and the requirements.
If the database/schemas in question are relativly small, I would probably go with export/import.
The larger the database and amount of data, the less attractive this option.
If you clone, you will have to change the database name. You probably don't want a development database with the same name as a production database even if they are on different servers.
Changing the name isn't a big deal. Just one more thing you have to do with a clone.
If the database/schemas in question are relativly small, I would probably go with export/import.
The larger the database and amount of data, the less attractive this option.
If you clone, you will have to change the database name. You probably don't want a development database with the same name as a production database even if they are on different servers.
Changing the name isn't a big deal. Just one more thing you have to do with a clone.
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Can you post step by step instructions on cloning the database? I am new to this, so I need some guidance
There are tons of links out there on cloning a database using RMAN if you look around. Many of them have the steps posted better than I can provide here.
Here's the online doc links for it:
http://docs.oracle.com/cd/E11882_01/backup.112/e10643/rcmsynta020.htm#RCMRF126
Here's the online doc links for it:
http://docs.oracle.com/cd/E11882_01/backup.112/e10643/rcmsynta020.htm#RCMRF126
There's an interesting article at the Pythian site that talks about a quick and easy restore if you have an existing RMAN database backup and controlfile backup.
I played with it on a test server and it worked remarkably well.
http://www.pythian.com/library/papers_and_books/the_quick_and_easy_rman_restore/
However, I'd be inclined to stick with the Oracle Documentation and trying to understand how it works step by step before trying to take any shortcuts.
I played with it on a test server and it worked remarkably well.
http://www.pythian.com/library/papers_and_books/the_quick_and_easy_rman_restore/
However, I'd be inclined to stick with the Oracle Documentation and trying to understand how it works step by step before trying to take any shortcuts.
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is RMAN installed separately or is it a part of a standard Oracle installation?
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So cloning the database is the same as restoring database from a backup, is it?
>>is RMAN installed separately or is it a part of a standard Oracle installation?
It should be part of the normal server install.
>>So cloning the database is the same as restoring database from a backup, is it?
The term 'clone' means an exact copy. How you achieve the exact copy is up to you.
Restoring from a backup is the most common way.
It should be part of the normal server install.
>>So cloning the database is the same as restoring database from a backup, is it?
The term 'clone' means an exact copy. How you achieve the exact copy is up to you.
Restoring from a backup is the most common way.
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how can I backup an Oracle database without using RMAN?
Shut down the database, copy all the necessary files, start the database back up.
This is typically called a cold-backup.
This is typically called a cold-backup.
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