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Time to complete an upgrade

How long do you think it would take one experienced DBA to prepare for and complete an upgrade for a 20 GB database from Oracle EE 8.1.7 to EE 9i R2? We plan to install 9i and then use the Upgrade Assistant. The platform is running on Windows 2000.

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The experienced DBA who knows the system would know better than I would. It could take anywhere from a few hours to a day or two. Every install/upgrade is different and has many variables involved. Sorry to be so vague, but there's not really a valid way to put an exact estimate together without knowing anything more about the database and environment.

This was first published in March 2004

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