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【多选题】
关于数据库用户与服务器角色、数据库角色的关系下列说法中错误的是( ).
A.
如果数据库用户U1是固定服务器角色db_owner的成员，并创建了表T1，则T1属于U1,并以dbo.T1进行限定
B.
如果数据库用户U1是固定服务器角色sysadmin的成员，并创建了表T1，则T1属于dbo,并以U1.T1进行限定
C.
如果数据库用户U2是固定服务器角色sysadmin的成员，并创建了表T1，则T1属于dbo,并以dbo.T1进行限定
D.
如果数据库用户U2是固定服务器角色db_owner的成员，并创建了表T1，则T1属于U2,并以U2.T1进行限定
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