The database tracking time period is set in our program, and could be as short as one hour or as long as one week, based on the market move.

我们的程序设定了数据库跟踪周期，周期短可短到一小时，长可长到一星期，因市场走势而定。

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One option for further consideration would tracking modifications using database triggers, and having the interceptor access the table the triggers write to.

一个可选的更深的考虑是使用数据库触发器来跟踪变化，让拦截器访问触发器所写入的表。

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Tracking back from database query to the application can be difficult.

从数据库往回追踪应用程序会非常难。

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By creating a massive database tracking millions of patients, Soon-Shiong hopes to streamline treatments to match up drugs with specific ailments.

FORBES: Good Drugs, Great Timing

His sales managers work the database hard, tracking who has traveled what distance to which auction, what they bought and how much they spent.

FORBES: Heavy metal

He has put together a database on FlyerTalk.com of 110 winning bids on Air New Zealand, tracking routes and prices shared by travelers.

WSJ: El Al, Virgin Atlantic Are Airlines That Auction Upgrades to Business Class