Timestamping a record is done many times throughout the life of a transaction for recording the time a transaction was created, was last modified, was last accessed, and so on.

在一个事务的整个生命周期内，需要多次记录时间戳，以便记下创建、最后一次修改、最后一次访问某一事务的时间。

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Timestamping a record is done many times throughout the life of a transaction for recording the time a transaction was created, was last modified, was last accessed, and so on.

在一个事务的整个生命周期内，需要多次记录时间戳，以便记下创建、最后一次修改、最后一次访问某一事务的时间。

youdao