In this paper attention is concentrated on concept and architecture of Oracle data Guard, and the process of planning, creating physical standby database and logical standby database.
论述了数据库备份的重要性和必要性，介绍了数据库备份的步骤及方法，并通过实例进行了数据库备份、还原操作。
That's where more than 7,000 National Guard members are on standby and evacuations are expected.
7000多名国家警卫人员待命，撤离也在计划中。
That's where more than 7,000 National Guard members are on standby and evacuations are expected.
7000多名国家警卫人员待命，撤离也在计划中。
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