This mode is useful in situations where you know when a task starts and stops but have no way of knowing how far the task has progressed.
这种模式在这样几种情形下是有用的,您可以知道一项任务何时开始以及何时停止,但是您没法知道任务进展了多远。
Use this mode to perform any maintenance task, including tasks requiring the execution of SQL and DDL statements, when no other users are connected to the database server.
在没有其他用户连接到数据库服务器的情况下,使用这种模式可以执行任何维护任务,包括执行SQL和ddl语句所需要的任务。
This mode is useful when you know exactly how far the task has progressed and can represent the progress visually (" visualize "the progress).
当您准确知道任务完成的进度时这种模式是很有用的,它能够在视觉上描绘进展情况(“可视化”这个进展)。
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