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The biggest difference between the cerfitication exams
is that Oracle 9i cert exams require all of the
information that 8i requires, plus all of the new
features that 9i brings to the table. The 8i and 9i
exam structure are similar. You can just take all of
the 9i exams, or you can take all of the 8i exams and
then take one upgrade exam. For More Information
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