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Help with migrating Oracle databases

Can you please explain to me the different ways available to migrate an Oracle database (from 7.3 to 8i, 8i to 9i). I am thankful if you can provide some useful links.

Migration can be accomplished by either using one or more of the following tools: the Migration Utility, the Oracle Data Migration Assistant or using Export/Import. The best place to look for guidance is the Oracle Migration guide. You can find the Oracle8i version of this document at the following link: http://technet.oracle.com/docs/products/oracle8i/doc_library/817_doc/server.817/a86632.pdf. The Oracle 9i version is located at: http://otn.oracle.com/docs/products/oracle9i/doc_library/901_doc/server.901/a90191.pdf. You must have a TechNet membership for these links to function properly, so if you run into trouble, simply go to http://technet.oracle.com to complete the membership form (it's free) and then follow the Documentation links to get to the Migration Guides.

The Migration Guide will outline each of the tools you can use and give you specific details about migrating between versions as well as the differences between upgrading and migrating.

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