Certain critical updates should always be done with pessimistic locking.

进行特定的关键性更新时，应始终使用悲观锁定方式。

If you are an administrator for multiple machines we strongly recommend you subscribe to this list to be notified of critical updates that may affect your system security.

如果您是很多台计算机的系统管理员我们极力的推荐您订阅列表。列表将提醒你那些可能影响到你的系统安全的关键升级。

It organizations must be prepared to handle mergers that require integrating heterogeneous applications, or to implement critical process updates that affect multiple systems.

IT组织必须准备好处理需要整合异构应用程序的合并，或实现影响多个系统的关键流程更新。

Given these two problems, polling may not be an appropriate approach for enterprise applications requiring critical, real-time, server-side updates.

考虑到这样两个问题，对于需要关键、实时的服务器端更新的企业应用程序而言，轮询并不是最理想的方法。

This approach may also be taken to update systems with reference data especially where timing of such updates is not critical as in the case of updates with a given start date.

也采用此方法通过使用参考数据更新系统，尤其是此类更新的时间不重要时，例如在给定开始日期进行更新的情况。