From BoL:
"By placing the database offline, users are prevented from accessing the database, and no modifications to the database can be made until the database is placed online."
May I ask, why are you trying to alter a database offline? If it's just to prevent user access to the database at the time you could remove all permissions to the database apart from your own?
Ade
A Freudian Slip is when you say one thing and mean your mother.
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