DB2更新当前表中的行并将旧行的副本移动到历史表中，记录系统时间起始值和结束值。
DB2 updates the row in the current table and moves a copy of the old row to the history table, recording the system time start and end values.
工时单(Timesheets)——进入时间和对当前分派的估算更新。
Timesheets - enter time and updated estimates against current assignments.
在清单5中，还可以看到空的div, Rails将用当前时间更新它。
In Listing 5, you can also see the empty div that Rails will update with the current time.
应用推荐