请注意，当把一个持久性存储单元附加给一个活动实例时，应用程序可以像本地或临时性存储一样访问实例的数据。
Please note that when a persistent storage unit is attached to an active instance, its data is accessible to applications just like local or ephemeral storage.
假设一个应用程序需要在一个工作单元中调用不同数据源上的两个存储过程。
Take, for example, an application that needs to call two stored procedures on different data sources in a single unit of work. Several scenarios are compared, based on whether the application program.
在具有微程序控制的指令集的微型计算机中，它包含另外的控制存储单元。
In a microcomputer with a microprogrammed instruction set, it contains an additional control-memory unit.
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