The ALTER SYSTEM DEFERRED command modifies the value of the parameter for future sessions that connect to the database.

ALTER SYSTEM DEFERRED命令修改的参数的值，是针对修改后连上数据库的会话起作用的。

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The ALTER SYSTEM command globally changes the value of the parameter. The new value is effective until shutdown or until it is changed again.

ALTER SYSTEM 命令修改参数的值，除非是再次修改或数据库关闭后，修改后的新值是一直有效的。

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Intruders might invade your systems for one of two reasons: to gain access to information that they should not have or to alter the behavior of a system.

入侵者入侵您的系统可能是出于这两个原因之一：为了获取他们本不应该拥有的信息，或者为了改变系统的行为。

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According to the report, support personnel working with an unidentified DOD system were able to alter system audit logs, which record all system activity and are a critical tool in identifying fraud and unauthorized access.

CNN: Extensive security gaps persist in DOD networks

While democrats fight for change within a system, Islamists seek to alter the system itself.

CENTERFORSECURITYPOLICY: What, me worry?

The first is to alter the pricing system that connects the train operators, Railtrack and the rolling-stock companies.

ECONOMIST: Mending Britain��s rotten railways