Every database management system must be able to protect data against unauthorized access and modification.
每个数据库管理系统都必须能保护数据不会受到未授权访问和修改。
You should also log any attempted unauthorized access to the system.
您应该记录任何不成功的系统登录。
You should also log any attempted unauthorized access to the system.
您应该记录任何不成功的系统登录。
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