一致性意味着事务代表应用程序状态的正确转换——即事务不能违反应用程序中固有的任何完整性限制。

Consistency means that the transaction represents a correct transformation of the application state — that any integrity constraints implicit in the application are not violated by the transaction.

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确认和限制以及一致性校验。

Validation as well as constraint and consistency checking.

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第二个限制是Amazon应用于队列的最终一致性方法。

The second limitation is the eventual consistency approach that Amazon takes with the queue.

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