Load data from and unload to a named pipe

You can use a named pipe, also called a first-in-first-out (FIFO) data file, to load from and unload to a nonstandard device, such as a tape drive.

Unlike ordinary operating-system files, named pipes do not have a 2-gigabyte size limitation. The operating system opens and checks for the end of file differently for named pipes than for ordinary files.

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