Really , Many many thanks . . .You're welcome!
You make me understand exactly the difference between OEM & OAM.
How can i configure or install OEM to admin the database?Please refer to the following notes:
Is OEM a software will be installed?Not by default, you have to configure it (review the notes referenced above for more details).
Is there specific OEM for each Oracle E-Business Suite version?OEM comes as part of Oracle database 10g software (please review the notes referenced above for more details).
Many many thanks againYou're welcome, again!