为了保存这些值，要将它们写入文本文件或关联表中。
In order to persist these values, you have to either write them to a flat file or to a relational table.
为了简化调试一组复杂的SQL命令，将其写入文本文件中然后一次执行文本文件中的所有命令通常更加容易。
To simplify debugging a set of complex SQL commands, it's generally easier to write them in a text file and then execute the commands in the text file all at once.
在一段时间的运行过程中，将不断地产生大量的跟踪数据，并持续地将其写入到磁盘上的文本文件中。
A monotonically increasing amount of trace data is produced over a period of time, which is written continuously to a text file on the disk.
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