Schemas have privileges associated with them, allowing the schema owner to control which users have the privilege to create, alter, and drop objects in the schema.
模式具有相关联的特权，使模式所有者能够控制哪些用户有权在这个模式中创建、修改和删除对象。
Just like tables, nicknames have an equivalent set of privileges that can control user access to the nickname objects on the federated system.
与表一样，昵称也有对等的一组权限，用于控制用户在联邦系统上对昵称对象的访问。
This includes authentication of users, control of access privileges, auditing, single sign-on, high availability, and logging that are elements of any security management solution.
它涵盖任何安全管理解决方案都具有的要素，比如用户认证、访问权限控制、审计、单点登录、高可用性和日志记录。
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