This ensures that concurrent updates to an item do not result in accidental data loss.

这确保对某个项的并发更新不会导致意外的数据丢失。

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This limited the number of concurrent updates/second with an acceptable response time as the database machine would saturate.

在可接受的响应时间内，随着数据库服务器的超负荷，每秒钟发生的并发更新数将受到限制。

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Given the relative complexity of managing concurrent updates, we make one related recommendation: Where possible use stateless semantics.

考虑到管理并发更新的相对复杂性，我们提出一个相关的建议：尽可能使用无状态语义。

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