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I plan to migrate an Oracle database from 7 to 9i and 8i to 9i. If possible, can you please send me the steps that are involved?
The upgrade steps you need are in the migration guide which is part of the 9i server documentation. You can also upgrade directly to a 9i patchset (like 188.8.131.52) by installing the patchset on the 9i ORACLE_HOME before doing the upgrades. A note exists on Metalink regarding this type of upgrade and documents any additional procedures you may need (I don't think there are any for most releases).