（多选题）
Examine the command： SQL> ALTER USER skd ACCOUNT LOCK； Which two statements are true after the command is executed（）
AThe SKD user cannot log in to the database instance.
BThe objects owned by the SKD user are not accessible to any user.
CThe other users can access the objects owned by the SKD user， on which they have access.
DThe password for the SKD user expires and the user is forced to change the password at the next log in
正确答案
答案解析
略
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