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  • A process must exist on each side of a pipe. On one side it is sqlplus on another it must something else. You could write a program to do the work of that while but that would still be a process. Commented Jul 21, 2016 at 13:30
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    Why must you avoid a child process? (this may help to get you the best answer). Commented Jul 21, 2016 at 14:30