What are the Issues in Migration from oracle 8i to oracle 10g

Hi,
Can you let me know what are the issues that i face when i migrate from oracle 8i to oracle 10g. I will be very thankful if you give me a list of issues that you face while migrating from 8i to 10g

In addition to Max's reply, you must be aware that you have to test your applications agains 10g database before you actually upgrade the database.
If you use CBO, it may produce different execution plans for one query when you run it in 8i and 10g. This may affect your application performances, which you don't like to happen.
Also you have to decide how much downtime you can afford during the migration. Can you afford some downtime and how much? If you can't than this makes the situation more complicated.
How big is your database? You may end up only with simple export/import solution using export import utility.
The bottom line is, whatever you decide, you must test your applications running against 10g database before you actually upgrade your database.

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