You can fetch as many feeds as you want, and the previous data is erased before the new data is displayed.

您可以按您所想，获得尽量多的提要，在新数据显示之前，先前的数据会被删除。

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The implementation of the lock function exploits the new DB2 capabilities of skipping locked data in an SQL fetch statement.

lock函数的实现在一个SQL fetch语句中使用DB 2新功能skipping locked data。

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