Multiple result sets with a single concurrent data reader.
多个结果集具有单个并发data reader。
Of these three functionalities, only sorting is somehow replicable in data reader mode.
在三种功能中,只有排序功能在数据阅读器模式有些重复。
In addition to the data reader, another function, called print_file, is used to print the entire contents of the file.
除了数据读取程序之外,另一个函数print _ file用于输出文件的所有内容。
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